diff --git a/src/test/java/com/mattrixwv/matrix/TestBigIntegerMatrix.java b/src/test/java/com/mattrixwv/matrix/TestBigIntegerMatrix.java
new file mode 100644
index 0000000..82189b8
--- /dev/null
+++ b/src/test/java/com/mattrixwv/matrix/TestBigIntegerMatrix.java
@@ -0,0 +1,1313 @@
+//Matrix/src/test/java/com/mattrixwv/matrix/TestBigBigIntegerMatrix.java
+//Mattrixwv
+// Created: 02-10-22
+//Modified: 02-10-22
+package com.mattrixwv.matrix;
+
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import java.math.BigInteger;
+
+import org.junit.Test;
+
+
+public class TestBigIntegerMatrix{
+	//Grid 1x1
+	private static final BigInteger[][] grid1 = {
+		{BigInteger.ONE}
+	};
+	private static final BigInteger[][] transformGrid1_1 = {
+		{BigInteger.ONE}
+	};
+	private static final BigInteger[][] transformGrid1_2 = {
+		{BigInteger.TWO}
+	};
+
+	//Grid 2x2
+	private static final BigInteger[][] grid2 = {
+		{BigInteger.ONE, BigInteger.TWO},
+		{BigInteger.ONE, BigInteger.TWO}
+	};
+	private static final BigInteger[][] transformGrid2_1 = {
+		{BigInteger.ONE, BigInteger.ZERO},
+		{BigInteger.ONE, BigInteger.ZERO}
+	};
+	private static final BigInteger[][] transformGrid2_2 = {
+		{BigInteger.TWO, BigInteger.valueOf(3)},
+		{BigInteger.TWO, BigInteger.valueOf(3)}
+	};
+
+	//Grid 3x3
+	private static final BigInteger[][] grid3 = {
+		{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)},
+		{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)},
+		{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)}
+	};
+	private static final BigInteger[][] transformGrid3_1 = {
+		{BigInteger.TWO, BigInteger.ONE, BigInteger.ZERO},
+		{BigInteger.TWO, BigInteger.ONE, BigInteger.ZERO},
+		{BigInteger.TWO, BigInteger.ONE, BigInteger.ZERO}
+	};
+	private static final BigInteger[][] transformGrid3_2 = {
+		{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+		{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+		{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)}
+	};
+
+	//Grid 4x4
+	private static final BigInteger[][] grid4 = {
+		{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+		{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+		{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+		{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)}
+	};
+	private static final BigInteger[][] transformGrid4_1 = {
+		{BigInteger.valueOf(3), BigInteger.TWO, BigInteger.ONE, BigInteger.ZERO},
+		{BigInteger.valueOf(3), BigInteger.TWO, BigInteger.ONE, BigInteger.ZERO},
+		{BigInteger.valueOf(3), BigInteger.TWO, BigInteger.ONE, BigInteger.ZERO},
+		{BigInteger.valueOf(3), BigInteger.TWO, BigInteger.ONE, BigInteger.ZERO}
+	};
+	private static final BigInteger[][] transformGrid4_2 = {
+		{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5)},
+		{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5)},
+		{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5)},
+		{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5)}
+	};
+
+	//Grid 10x10
+	private static final BigInteger[][] grid10 = {
+		{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+		{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+		{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+		{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+		{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+		{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+		{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+		{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+		{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+		{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)}
+	};
+	private static final BigInteger[][] transformGrid10_1 = {
+		{BigInteger.valueOf(9), BigInteger.valueOf(8), BigInteger.valueOf(7), BigInteger.valueOf(6), BigInteger.valueOf(5), BigInteger.valueOf(4), BigInteger.valueOf(3), BigInteger.TWO, BigInteger.ONE, BigInteger.ZERO},
+		{BigInteger.valueOf(9), BigInteger.valueOf(8), BigInteger.valueOf(7), BigInteger.valueOf(6), BigInteger.valueOf(5), BigInteger.valueOf(4), BigInteger.valueOf(3), BigInteger.TWO, BigInteger.ONE, BigInteger.ZERO},
+		{BigInteger.valueOf(9), BigInteger.valueOf(8), BigInteger.valueOf(7), BigInteger.valueOf(6), BigInteger.valueOf(5), BigInteger.valueOf(4), BigInteger.valueOf(3), BigInteger.TWO, BigInteger.ONE, BigInteger.ZERO},
+		{BigInteger.valueOf(9), BigInteger.valueOf(8), BigInteger.valueOf(7), BigInteger.valueOf(6), BigInteger.valueOf(5), BigInteger.valueOf(4), BigInteger.valueOf(3), BigInteger.TWO, BigInteger.ONE, BigInteger.ZERO},
+		{BigInteger.valueOf(9), BigInteger.valueOf(8), BigInteger.valueOf(7), BigInteger.valueOf(6), BigInteger.valueOf(5), BigInteger.valueOf(4), BigInteger.valueOf(3), BigInteger.TWO, BigInteger.ONE, BigInteger.ZERO},
+		{BigInteger.valueOf(9), BigInteger.valueOf(8), BigInteger.valueOf(7), BigInteger.valueOf(6), BigInteger.valueOf(5), BigInteger.valueOf(4), BigInteger.valueOf(3), BigInteger.TWO, BigInteger.ONE, BigInteger.ZERO},
+		{BigInteger.valueOf(9), BigInteger.valueOf(8), BigInteger.valueOf(7), BigInteger.valueOf(6), BigInteger.valueOf(5), BigInteger.valueOf(4), BigInteger.valueOf(3), BigInteger.TWO, BigInteger.ONE, BigInteger.ZERO},
+		{BigInteger.valueOf(9), BigInteger.valueOf(8), BigInteger.valueOf(7), BigInteger.valueOf(6), BigInteger.valueOf(5), BigInteger.valueOf(4), BigInteger.valueOf(3), BigInteger.TWO, BigInteger.ONE, BigInteger.ZERO},
+		{BigInteger.valueOf(9), BigInteger.valueOf(8), BigInteger.valueOf(7), BigInteger.valueOf(6), BigInteger.valueOf(5), BigInteger.valueOf(4), BigInteger.valueOf(3), BigInteger.TWO, BigInteger.ONE, BigInteger.ZERO},
+		{BigInteger.valueOf(9), BigInteger.valueOf(8), BigInteger.valueOf(7), BigInteger.valueOf(6), BigInteger.valueOf(5), BigInteger.valueOf(4), BigInteger.valueOf(3), BigInteger.TWO, BigInteger.ONE, BigInteger.ZERO}
+	};
+	private static final BigInteger[][] transformGrid10_2 = {
+		{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.valueOf(11)},
+		{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.valueOf(11)},
+		{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.valueOf(11)},
+		{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.valueOf(11)},
+		{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.valueOf(11)},
+		{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.valueOf(11)},
+		{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.valueOf(11)},
+		{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.valueOf(11)},
+		{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.valueOf(11)},
+		{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.valueOf(11)}
+	};
+
+
+	@Test
+	public void testEquals(){
+		//1x1
+		BigIntegerMatrix matrix = new BigIntegerMatrix(grid1);
+		assertTrue("BigIntegerMatrix 1x1 failed equals BigIntegerMatrix.", matrix.equals(matrix));
+		@SuppressWarnings("unlikely-arg-type")
+		boolean gridEquals = matrix.equals(grid1);
+		assertTrue("BigIntegerMatrix 1x1 failed equals BigInteger[][].", gridEquals);
+
+		//2x2
+		matrix = new BigIntegerMatrix(grid2);
+		assertTrue("BigIntegerMatrix 2x2 failed equals BigIntegerMatrix.", matrix.equals(matrix));
+		@SuppressWarnings("unlikely-arg-type")
+		boolean gridEquals2 = matrix.equals(grid2);
+		assertTrue("BigIntegerMatrix 2x2 failed equals BigInteger[][].", gridEquals2);
+
+		//3x3
+		matrix = new BigIntegerMatrix(grid3);
+		assertTrue("BigIntegerMatrix 3x3 failed equals BigIntegerMatrix.", matrix.equals(matrix));
+		@SuppressWarnings("unlikely-arg-type")
+		boolean gridEquals3 = matrix.equals(grid3);
+		assertTrue("BigIntegerMatrix 3x3 failed equals BigInteger[][].", gridEquals3);
+
+		//4x4
+		matrix = new BigIntegerMatrix(grid4);
+		assertTrue("BigIntegerMatrix 4x4 failed equals BigIntegerMatrix.", matrix.equals(matrix));
+		@SuppressWarnings("unlikely-arg-type")
+		boolean gridEquals4 = matrix.equals(grid4);
+		assertTrue("BigIntegerMatrix 4x4 failed equals BigInteger[][].", gridEquals4);
+
+		//10x10
+		matrix = new BigIntegerMatrix(grid10);
+		assertTrue("BigIntegerMatrix = 10x10 failed equals BigIntegerMatrix.", matrix.equals(matrix));
+		@SuppressWarnings("unlikely-arg-type")
+		boolean gridEquals10 = matrix.equals(grid10);
+		assertTrue("BigIntegerMatrix 10x10 failed equals BigInteger[][].", gridEquals10);
+	}
+
+	@Test
+	public void testGets(){
+		//1x1
+		BigIntegerMatrix matrix = new BigIntegerMatrix(grid1);
+		assertEquals("BigIntegerMatrix 1x1 failed get.", BigInteger.ONE, matrix.get(0, 0));
+		//GetRow
+		BigIntegerMatrix correctMatrix = new BigIntegerMatrix(new BigInteger[][]{{BigInteger.ONE}});
+		assertEquals("BigIntegerMatrix 1x1 failed getRow.", correctMatrix, matrix.getRow(0));
+		//GetColumn
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{{BigInteger.ONE}});
+		assertEquals("BigIntegerMatrix 1x1 failed getCol.", correctMatrix, matrix.getCol(0));
+
+		//2x2
+		matrix = new BigIntegerMatrix(grid2);
+		assertEquals("BigIntegerMatrix 2x2 failed get.", BigInteger.ONE, matrix.get(0, 0));
+		//GetRow
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{{BigInteger.ONE, BigInteger.TWO}});
+		assertEquals("BigIntegerMatrix 2x2 failed getRow.", correctMatrix, matrix.getRow(0));
+		//GetColumn
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE},
+			{BigInteger.ONE}
+		});
+		assertEquals("BigIntegerMatrix 2x2 failed getCol.", correctMatrix, matrix.getCol(0));
+
+		//3x3
+		matrix = new BigIntegerMatrix(grid3);
+		assertEquals("BigIntegerMatrix 3x3 failed get.", BigInteger.ONE, matrix.get(0, 0));
+		//GetRow
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)}});
+		assertEquals("BigIntegerMatrix 3x3 failed getRow.", correctMatrix, matrix.getRow(0));
+		//GetColumn
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE},
+			{BigInteger.ONE},
+			{BigInteger.ONE}
+		});
+		assertEquals("BigIntegerMatrix 3x3 failed getCol.", correctMatrix, matrix.getCol(0));
+
+		//4x4
+		matrix = new BigIntegerMatrix(grid4);
+		assertEquals("BigIntegerMatrix 4x4 failed get.", BigInteger.ONE, matrix.get(0, 0));
+		//GetRow
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)}});
+		assertEquals("BigIntegerMatrix 4x4 failed getRow.", correctMatrix, matrix.getRow(0));
+		//GetColumn
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE},
+			{BigInteger.ONE},
+			{BigInteger.ONE},
+			{BigInteger.ONE}
+		});
+		assertEquals("BigIntegerMatrix 4x4 failed getCol.", correctMatrix, matrix.getCol(0));
+
+		//10x10
+		matrix = new BigIntegerMatrix(grid10);
+		assertEquals("BigIntegerMatrix 10x10 failed get.", BigInteger.ONE, matrix.get(0, 0));
+		//GetRow
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)}});
+		assertEquals("BigIntegerMatrix 10x10 failed getRow.", correctMatrix, matrix.getRow(0));
+		//GetColumn
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE},
+			{BigInteger.ONE},
+			{BigInteger.ONE},
+			{BigInteger.ONE},
+			{BigInteger.ONE},
+			{BigInteger.ONE},
+			{BigInteger.ONE},
+			{BigInteger.ONE},
+			{BigInteger.ONE},
+			{BigInteger.ONE}
+		});
+		assertEquals("BigIntegerMatrix 10x10 failed getColumn.", correctMatrix, matrix.getCol(0));
+	}
+
+	@Test
+	public void testSets(){
+		//1x1
+		//Set
+		BigIntegerMatrix matrix = new BigIntegerMatrix(grid1);
+		matrix.set(0, 0, BigInteger.TWO);
+		BigIntegerMatrix correctMatrix = new BigIntegerMatrix(new BigInteger[][]{{BigInteger.TWO}});
+		assertEquals("BigIntegerMatrix 1x1 failed set.", correctMatrix, matrix);
+		//SetRow
+		matrix.setRow(0, new BigInteger[]{BigInteger.ZERO});
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{{BigInteger.ZERO}});
+		assertEquals("BigIntegerMatrix 1x1 failed setRow.", correctMatrix, matrix);
+		//SetColumn
+		matrix.setCol(0, new BigInteger[]{BigInteger.ONE});
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{{BigInteger.ONE}});
+		assertEquals("BigIntegerMatrix 1x1 failed setCol.", correctMatrix, matrix);
+
+		//2x2
+		//Set
+		matrix = new BigIntegerMatrix(grid2);
+		matrix.set(0, 0, BigInteger.valueOf(3));
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.valueOf(3), BigInteger.TWO},
+			{BigInteger.ONE, BigInteger.TWO}
+		});
+		assertEquals("BigIntegerMatrix 2x2 failed set.", correctMatrix, matrix);
+		//SetRow
+		matrix.setRow(1, new BigInteger[]{BigInteger.TWO, BigInteger.ONE});
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.valueOf(3), BigInteger.TWO},
+			{BigInteger.TWO, BigInteger.ONE}
+		});
+		assertEquals("BigIntegerMatrix 2x2 failed set row.", correctMatrix, matrix);
+		//SetColumn
+		matrix = new BigIntegerMatrix(grid2);
+		matrix.setCol(0, new BigInteger[]{BigInteger.valueOf(3), BigInteger.valueOf(3)});
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.valueOf(3), BigInteger.TWO},
+			{BigInteger.valueOf(3), BigInteger.TWO}
+		});
+		assertEquals("BigIntegerMatrix 2x2 failed set row.", correctMatrix, matrix);
+
+		//3x3
+		//Set
+		matrix = new BigIntegerMatrix(grid3);
+		matrix.set(0, 0, BigInteger.valueOf(3));
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.valueOf(3), BigInteger.TWO, BigInteger.valueOf(3)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)},
+		});
+		assertEquals("BigIntegerMatrix 3x3 failed set.", correctMatrix, matrix);
+		//SetRow
+		matrix.setRow(0, new BigInteger[]{BigInteger.ZERO, BigInteger.ONE, BigInteger.TWO});
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ZERO, BigInteger.ONE, BigInteger.TWO},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)}
+		});
+		assertEquals("BigIntegerMatrix 3x3 failed setRow.", correctMatrix, matrix);
+		//SetColumn
+		matrix.setCol(0, new BigInteger[]{BigInteger.ZERO, BigInteger.ZERO, BigInteger.ZERO});
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ZERO, BigInteger.ONE, BigInteger.TWO},
+			{BigInteger.ZERO, BigInteger.TWO, BigInteger.valueOf(3)},
+			{BigInteger.ZERO, BigInteger.TWO, BigInteger.valueOf(3)}
+		});
+		assertEquals("BigIntegerMatrix 3x3 failed setColumn.", correctMatrix, matrix);
+
+		//4x4
+		//Set
+		matrix = new BigIntegerMatrix(grid4);
+		matrix.set(0, 0, BigInteger.valueOf(3));
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.valueOf(3), BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)}
+		});
+		assertEquals("BigIntegerMatrix 4x4 failed set.", correctMatrix, matrix);
+		//SetRow
+		matrix.setRow(0, new BigInteger[]{BigInteger.valueOf(4), BigInteger.valueOf(3), BigInteger.TWO, BigInteger.ONE});
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.valueOf(4), BigInteger.valueOf(3), BigInteger.TWO, BigInteger.ONE},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)}
+		});
+		assertEquals("BigIntegerMatrix 4x4 failed setRow.", correctMatrix, matrix);
+		//SetColumn
+		matrix.setCol(0, new BigInteger[]{BigInteger.ZERO, BigInteger.ZERO, BigInteger.ZERO, BigInteger.ZERO});
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ZERO, BigInteger.valueOf(3), BigInteger.TWO, BigInteger.ONE},
+			{BigInteger.ZERO, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.ZERO, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.ZERO, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)}
+		});
+		assertEquals("BigIntegerMatrix 4x4 failed setCol.", correctMatrix, matrix);
+
+		//10x10
+		//Set
+		matrix = new BigIntegerMatrix(grid10);
+		matrix.set(0, 0, BigInteger.valueOf(3));
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.valueOf(3), BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)}
+		});
+		assertEquals("BigIntegerMatrix 10x10 failed setRow.", correctMatrix, matrix);
+		//SetRow
+		matrix.setRow(0, new BigInteger[]{BigInteger.valueOf(10), BigInteger.valueOf(9), BigInteger.valueOf(8), BigInteger.valueOf(7), BigInteger.valueOf(6), BigInteger.valueOf(5), BigInteger.valueOf(4), BigInteger.valueOf(3), BigInteger.TWO, BigInteger.ONE});
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.valueOf(10), BigInteger.valueOf(9), BigInteger.valueOf(8), BigInteger.valueOf(7), BigInteger.valueOf(6), BigInteger.valueOf(5), BigInteger.valueOf(4), BigInteger.valueOf(3), BigInteger.TWO, BigInteger.ONE},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)}
+		});
+		assertEquals("BigIntegerMatrix 10x10 failed setRow.", correctMatrix, matrix);
+		//SetColumn
+		matrix.setCol(0, new BigInteger[]{BigInteger.ZERO, BigInteger.ZERO, BigInteger.ZERO, BigInteger.ZERO, BigInteger.ZERO, BigInteger.ZERO, BigInteger.ZERO, BigInteger.ZERO, BigInteger.ZERO, BigInteger.ZERO});
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ZERO, BigInteger.valueOf(9), BigInteger.valueOf(8), BigInteger.valueOf(7), BigInteger.valueOf(6), BigInteger.valueOf(5), BigInteger.valueOf(4), BigInteger.valueOf(3), BigInteger.TWO, BigInteger.ONE},
+			{BigInteger.ZERO, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ZERO, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ZERO, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ZERO, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ZERO, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ZERO, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ZERO, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ZERO, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ZERO, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)}
+		});
+		assertEquals("BigIntegerMatrix 10x10 failed setColumn.", correctMatrix, matrix);
+	}
+
+	@Test
+	public void testAdds(){
+		//1x1
+		//AddRow
+		BigIntegerMatrix matrix = new BigIntegerMatrix(grid1);
+		matrix.addRow(new BigInteger[]{BigInteger.ONE});
+		BigIntegerMatrix correctMatrix = new BigIntegerMatrix(new BigInteger[][]{{BigInteger.ONE}, {BigInteger.ONE}});
+		assertEquals("BigIntegerMatrix 1x1 failed addRow.", correctMatrix, matrix);
+		//AddColumn
+		matrix = new BigIntegerMatrix(grid1);
+		matrix.addCol(new BigInteger[]{BigInteger.ONE});
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{{BigInteger.ONE, BigInteger.ONE}});
+		assertEquals("BigIntegerMatrix 1x1 failed addCol.", correctMatrix, matrix);
+
+		//2x2
+		//AddRow
+		matrix = new BigIntegerMatrix(grid2);
+		matrix.addRow(new BigInteger[]{BigInteger.ONE, BigInteger.TWO});
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE, BigInteger.TWO},
+			{BigInteger.ONE, BigInteger.TWO},
+			{BigInteger.ONE, BigInteger.TWO}
+		});
+		assertEquals("BigIntegerMatrix 2x2 failed addRow.", correctMatrix, matrix);
+		//AddColumn
+		matrix = new BigIntegerMatrix(grid2);
+		matrix.addCol(new BigInteger[]{BigInteger.valueOf(3), BigInteger.valueOf(3)});
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)}
+		});
+		assertEquals("BigIntegerMatrix 2x2 failed addCol.", correctMatrix, matrix);
+
+		//3x3
+		//AddRow
+		matrix = new BigIntegerMatrix(grid3);
+		matrix.addRow(new BigInteger[]{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)});
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)}
+		});
+		assertEquals("BigIntegerMatrix 3x3 failed addRow.", correctMatrix, matrix);
+		//AddColumn
+		matrix = new BigIntegerMatrix(grid3);
+		matrix.addCol(new BigInteger[]{BigInteger.valueOf(4), BigInteger.valueOf(4), BigInteger.valueOf(4)});
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)}
+		});
+		assertEquals("BigIntegerMatrix 3x3 failed addCol.", correctMatrix, matrix);
+
+		//4x4
+		//AddRow
+		matrix = new BigIntegerMatrix(grid4);
+		matrix.addRow(new BigInteger[]{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)});
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)}
+		});
+		assertEquals("BigIntegerMatrix 4x4 failed addRow.", correctMatrix, matrix);
+		//AddColumn
+		matrix.addCol(new BigInteger[]{BigInteger.valueOf(5), BigInteger.valueOf(5), BigInteger.valueOf(5), BigInteger.valueOf(5), BigInteger.valueOf(5)});
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5)}
+		});
+		assertEquals("BigIntegerMatrix 4x4 failed addCol.", correctMatrix, matrix);
+
+		//10x10
+		//AddRow
+		matrix = new BigIntegerMatrix(grid10);
+		matrix.addRow(new BigInteger[]{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)});
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)}
+		});
+		assertEquals("BigIntegerMatrix 10x10 failed addRow.", correctMatrix, matrix);
+		//AddColumn
+		matrix = new BigIntegerMatrix(grid10);
+		matrix.addCol(new BigInteger[]{BigInteger.valueOf(11), BigInteger.valueOf(11), BigInteger.valueOf(11), BigInteger.valueOf(11), BigInteger.valueOf(11), BigInteger.valueOf(11), BigInteger.valueOf(11), BigInteger.valueOf(11), BigInteger.valueOf(11), BigInteger.valueOf(11)});
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.valueOf(11)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.valueOf(11)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.valueOf(11)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.valueOf(11)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.valueOf(11)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.valueOf(11)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.valueOf(11)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.valueOf(11)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.valueOf(11)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.valueOf(11)}
+		});
+		assertEquals("BigIntegerMatrix 10x10 failed addColumn.", correctMatrix, matrix);
+	}
+
+	@Test
+	public void testAppends(){
+		//1x1
+		//appendRight
+		BigIntegerMatrix matrix = new BigIntegerMatrix(grid1);
+		BigIntegerMatrix secondMatrix = new BigIntegerMatrix(grid1);
+		BigIntegerMatrix correctMatrix = new BigIntegerMatrix(new BigInteger[][]{{BigInteger.ONE, BigInteger.ONE}});
+		assertEquals("BigIntegerMatrix 1x1 failed appendRight.", correctMatrix, matrix.appendRight(secondMatrix));
+		//appendBottom
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE},
+			{BigInteger.ONE}
+		});
+		assertEquals("BigIntegerMatrix 1x1 failed appendBottom.", correctMatrix, matrix.appendBottom(secondMatrix));
+
+		//2x2
+		//appendRight
+		matrix = new BigIntegerMatrix(grid2);
+		secondMatrix = new BigIntegerMatrix(grid2);
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.ONE, BigInteger.TWO},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.ONE, BigInteger.TWO}
+		});
+		assertEquals("BigIntegerMatrix 2x2 failed appendRight.", correctMatrix, matrix.appendRight(secondMatrix));
+		//appendBottom
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE, BigInteger.TWO},
+			{BigInteger.ONE, BigInteger.TWO},
+			{BigInteger.ONE, BigInteger.TWO},
+			{BigInteger.ONE, BigInteger.TWO}
+		});
+		assertEquals("BigIntegerMatrix 2x2 failed appendBottom.", correctMatrix, matrix.appendBottom(secondMatrix));
+
+		//3x3
+		//appendRight
+		matrix = new BigIntegerMatrix(grid3);
+		secondMatrix = new BigIntegerMatrix(grid3);
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)}
+		});
+		assertEquals("BigIntegerMatrix 3x3 failed appendRight.", correctMatrix, matrix.appendRight(secondMatrix));
+		//appendBottom
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)}
+		});
+		assertEquals("BigIntegerMatrix 3x3 failed appendBottom.", correctMatrix, matrix.appendBottom(secondMatrix));
+
+		//4x4
+		//appendRight
+		matrix = new BigIntegerMatrix(grid4);
+		secondMatrix = new BigIntegerMatrix(grid4);
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)}
+		});
+		assertEquals("BigIntegerMatrix 4x4 failed appendRight.", correctMatrix, matrix.appendRight(secondMatrix));
+		//appendBottom
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)}
+		});
+		assertEquals("BigIntegerMatrix 4x4 failed appendBottom.", correctMatrix, matrix.appendBottom(secondMatrix));
+
+		//10x10
+		//appendRight
+		matrix = new BigIntegerMatrix(grid10);
+		secondMatrix = new BigIntegerMatrix(grid10);
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)}
+		});
+		assertEquals("BigIntegerMatrix 10x10 failed appendRight.", correctMatrix, matrix.appendRight(secondMatrix));
+		//appendBottom
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)}, {BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)}, {BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)}, {BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)}, {BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)}, {BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)}, {BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)}, {BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)}, {BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)}, {BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)}, {BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+		});
+		assertEquals("BigIntegerMatrix 10x10 failed appendBottom.", correctMatrix, matrix.appendBottom(secondMatrix));
+	}
+
+	@Test
+	public void testAddition(){
+		//1x1
+		BigIntegerMatrix matrix = new BigIntegerMatrix(grid1);
+		BigIntegerMatrix transformMatrix = new BigIntegerMatrix(transformGrid1_1);
+		BigIntegerMatrix correctMatrix = new BigIntegerMatrix(new BigInteger[][]{{BigInteger.TWO}});
+		assertEquals("BigIntegerMatrix 1x1 failed add BigIntegerMatrix.", correctMatrix, matrix.add(transformMatrix));
+		assertEquals("BigIntegerMatrix 1x1 failed add scalar.", correctMatrix, matrix.add(BigInteger.ONE));
+
+		//2x2
+		matrix = new BigIntegerMatrix(grid2);
+		transformMatrix = new BigIntegerMatrix(transformGrid2_1);
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.TWO, BigInteger.TWO},
+			{BigInteger.TWO, BigInteger.TWO}
+		});
+		assertEquals("BigIntegerMatrix 2x2 failed add BigIntegerMatrix.", correctMatrix, matrix.add(transformMatrix));
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.TWO, BigInteger.valueOf(3)},
+			{BigInteger.TWO, BigInteger.valueOf(3)}
+		});
+		assertEquals("BigIntegerMatrix 2x2 failed add scalar.", correctMatrix, matrix.add(BigInteger.ONE));
+
+		//3x3
+		matrix = new BigIntegerMatrix(grid3);
+		transformMatrix = new BigIntegerMatrix(transformGrid3_1);
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.valueOf(3), BigInteger.valueOf(3), BigInteger.valueOf(3)},
+			{BigInteger.valueOf(3), BigInteger.valueOf(3), BigInteger.valueOf(3)},
+			{BigInteger.valueOf(3), BigInteger.valueOf(3), BigInteger.valueOf(3)}
+		});
+		assertEquals("BigIntegerMatrix 3x3 failed add BigIntegerMatrix.", correctMatrix, matrix.add(transformMatrix));
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)}
+		});
+		assertEquals("BigIntegerMatrix 3x3 failed add scalar.", correctMatrix, matrix.add(BigInteger.ONE));
+
+		//4x4
+		matrix = new BigIntegerMatrix(grid4);
+		transformMatrix = new BigIntegerMatrix(transformGrid4_1);
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.valueOf(4), BigInteger.valueOf(4), BigInteger.valueOf(4), BigInteger.valueOf(4)},
+			{BigInteger.valueOf(4), BigInteger.valueOf(4), BigInteger.valueOf(4), BigInteger.valueOf(4)},
+			{BigInteger.valueOf(4), BigInteger.valueOf(4), BigInteger.valueOf(4), BigInteger.valueOf(4)},
+			{BigInteger.valueOf(4), BigInteger.valueOf(4), BigInteger.valueOf(4), BigInteger.valueOf(4)}
+		});
+		assertEquals("BigIntegerMatrix 4x4 failed add BigIntegerMatrix.", correctMatrix, matrix.add(transformMatrix));
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5)},
+			{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5)},
+			{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5)},
+			{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5)}
+		});
+		assertEquals("BigIntegerMatrix 4x4 failed add scalar.", correctMatrix, matrix.add(BigInteger.ONE));
+
+		//10x10
+		matrix = new BigIntegerMatrix(grid10);
+		transformMatrix = new BigIntegerMatrix(transformGrid10_1);
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10)},
+			{BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10)},
+			{BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10)},
+			{BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10)},
+			{BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10)},
+			{BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10)},
+			{BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10)},
+			{BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10)},
+			{BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10)},
+			{BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10)}
+		});
+		assertEquals("BigIntegerMatrix 5x5 failed add BigIntegerMatrix.", correctMatrix, matrix.add(transformMatrix));
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.valueOf(11)},
+			{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.valueOf(11)},
+			{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.valueOf(11)},
+			{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.valueOf(11)},
+			{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.valueOf(11)},
+			{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.valueOf(11)},
+			{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.valueOf(11)},
+			{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.valueOf(11)},
+			{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.valueOf(11)},
+			{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.valueOf(11)}
+		});
+		assertEquals("BigIntegerMatrix 10x10 failed add BigIntegerMatrix.", correctMatrix, matrix.add(BigInteger.ONE));
+	}
+
+	@Test
+	public void testSubtraction(){
+		//1x1
+		BigIntegerMatrix matrix = new BigIntegerMatrix(grid1);
+		BigIntegerMatrix transformMatrix = new BigIntegerMatrix(grid1);
+		BigIntegerMatrix correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ZERO}
+		});
+		assertEquals("BigIntegerMatrix 1x1 failed subtract BigIntegerMatrix.", correctMatrix, matrix.subtract(transformMatrix));
+		assertEquals("BigIntegerMatrix 1x1 failed subtract scalar.", correctMatrix, matrix.subtract(BigInteger.ONE));
+
+		//2x2
+		matrix = new BigIntegerMatrix(grid2);
+		transformMatrix = new BigIntegerMatrix(grid2);
+		correctMatrix = new BigIntegerMatrix(2, 2, BigInteger.ZERO);
+		assertEquals("BigIntegerMatrix 2x2 failed subtract BigIntegerMatrix.", correctMatrix, matrix.subtract(transformMatrix));
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ZERO, BigInteger.ONE},
+			{BigInteger.ZERO, BigInteger.ONE}
+		});
+		assertEquals("BigIntegerMatrix 2x2 failed subtract scalar.", correctMatrix, matrix.subtract(BigInteger.ONE));
+
+		//3x3
+		matrix = new BigIntegerMatrix(grid3);
+		transformMatrix = new BigIntegerMatrix(grid3);
+		correctMatrix = new BigIntegerMatrix(3, 3, BigInteger.ZERO);
+		assertEquals("BigIntegerMatrix 3x3 failed subtract BigIntegerMatrix.", correctMatrix, matrix.subtract(transformMatrix));
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ZERO, BigInteger.ONE, BigInteger.TWO},
+			{BigInteger.ZERO, BigInteger.ONE, BigInteger.TWO},
+			{BigInteger.ZERO, BigInteger.ONE, BigInteger.TWO}
+		});
+		assertEquals("BigIntegerMatrix 3x3 failed subtract scalar.", correctMatrix, matrix.subtract(BigInteger.ONE));
+
+		//4x4
+		matrix = new BigIntegerMatrix(grid4);
+		transformMatrix = new BigIntegerMatrix(grid4);
+		correctMatrix = new BigIntegerMatrix(4, 4, BigInteger.ZERO);
+		assertEquals("BigIntegerMatrix 4x4 failed subtract BigIntegerMatrix.", correctMatrix, matrix.subtract(transformMatrix));
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ZERO, BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)},
+			{BigInteger.ZERO, BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)},
+			{BigInteger.ZERO, BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)},
+			{BigInteger.ZERO, BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)}
+		});
+		assertEquals("BigIntegerMatrix 4x4 failed subtract scalar.", correctMatrix, matrix.subtract(BigInteger.ONE));
+
+		//10x10
+		matrix = new BigIntegerMatrix(grid10);
+		transformMatrix = new BigIntegerMatrix(grid10);
+		correctMatrix = new BigIntegerMatrix(10, 10, BigInteger.ZERO);
+		assertEquals("BigIntegerMatrix 10x10 failed subtract BigIntegerMatrix.", correctMatrix, matrix.subtract(transformMatrix));
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ZERO, BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9)},
+			{BigInteger.ZERO, BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9)},
+			{BigInteger.ZERO, BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9)},
+			{BigInteger.ZERO, BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9)},
+			{BigInteger.ZERO, BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9)},
+			{BigInteger.ZERO, BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9)},
+			{BigInteger.ZERO, BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9)},
+			{BigInteger.ZERO, BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9)},
+			{BigInteger.ZERO, BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9)},
+			{BigInteger.ZERO, BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9)}
+		});
+		assertEquals("BigIntegerMatrix 10x10 failed subtract scalar.", correctMatrix, matrix.subtract(BigInteger.ONE));
+	}
+
+	@Test
+	public void testMultiplication(){
+		//1x1
+		BigIntegerMatrix matrix = new BigIntegerMatrix(grid1);
+		BigIntegerMatrix transformMatrix = new BigIntegerMatrix(transformGrid1_2);
+		BigIntegerMatrix correctMatrix = new BigIntegerMatrix(transformGrid1_2);
+		assertEquals("BigIntegerMatrix 1x1 failed multiplication BigIntegerMatrix.", correctMatrix, matrix.multiply(transformMatrix));
+		assertEquals("BigIntegerMatrix 1x1 failed multiplication scalar.", correctMatrix, matrix.multiply(BigInteger.TWO));
+
+		//2x2
+		matrix = new BigIntegerMatrix(grid2);
+		transformMatrix = new BigIntegerMatrix(transformGrid2_2);
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.valueOf(6), BigInteger.valueOf(9)},
+			{BigInteger.valueOf(6), BigInteger.valueOf(9)}
+		});
+		assertEquals("BigIntegerMatrix 2x2 failed multiplication BigIntegerMatrix.", correctMatrix, matrix.multiply(transformMatrix));
+		BigIntegerMatrix vector = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.TWO},
+			{BigInteger.valueOf(3)}
+		});
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.valueOf(8)},
+			{BigInteger.valueOf(8)}
+		});
+		assertEquals("BigIntegerMatrix 2x2 failed multiplication vector.", correctMatrix, matrix.multiply(vector));
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.TWO, BigInteger.valueOf(4)},
+			{BigInteger.TWO, BigInteger.valueOf(4)}
+		});
+		assertEquals("BigIntegerMatrix 2x2 failed multiplication scalar.", correctMatrix, matrix.multiply(BigInteger.TWO));
+
+		//3x3
+		matrix = new BigIntegerMatrix(grid3);
+		transformMatrix = new BigIntegerMatrix(transformGrid3_2);
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.valueOf(12), BigInteger.valueOf(18), BigInteger.valueOf(24)},
+			{BigInteger.valueOf(12), BigInteger.valueOf(18), BigInteger.valueOf(24)},
+			{BigInteger.valueOf(12), BigInteger.valueOf(18), BigInteger.valueOf(24)}
+		});
+		assertEquals("BigIntegerMatrix 3x3 failed multiplication BigIntegerMatrix.", correctMatrix, matrix.multiply(transformMatrix));
+		vector = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.TWO},
+			{BigInteger.valueOf(3)},
+			{BigInteger.valueOf(4)}
+		});
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.valueOf(20)},
+			{BigInteger.valueOf(20)},
+			{BigInteger.valueOf(20)}
+		});
+		assertEquals("BigIntegerMatrix 3x3 failed multiplication vector.", correctMatrix, matrix.multiply(vector));
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.TWO, BigInteger.valueOf(4), BigInteger.valueOf(6)},
+			{BigInteger.TWO, BigInteger.valueOf(4), BigInteger.valueOf(6)},
+			{BigInteger.TWO, BigInteger.valueOf(4), BigInteger.valueOf(6)}
+		});
+		assertEquals("BigIntegerMatrix 3x3 failed multiplication scalar.", correctMatrix, matrix.multiply(BigInteger.TWO));
+
+		//4x4
+		matrix = new BigIntegerMatrix(grid4);
+		transformMatrix = new BigIntegerMatrix(transformGrid4_2);
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.valueOf(20), BigInteger.valueOf(30), BigInteger.valueOf(40), BigInteger.valueOf(50)},
+			{BigInteger.valueOf(20), BigInteger.valueOf(30), BigInteger.valueOf(40), BigInteger.valueOf(50)},
+			{BigInteger.valueOf(20), BigInteger.valueOf(30), BigInteger.valueOf(40), BigInteger.valueOf(50)},
+			{BigInteger.valueOf(20), BigInteger.valueOf(30), BigInteger.valueOf(40), BigInteger.valueOf(50)},
+		});
+		assertEquals("BigIntegerMatrix 4x4 failed multiplication BigIntegerMatrix.", correctMatrix, matrix.multiply(transformMatrix));
+		vector = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.TWO},
+			{BigInteger.valueOf(3)},
+			{BigInteger.valueOf(4)},
+			{BigInteger.valueOf(5)}
+		});
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.valueOf(40)},
+			{BigInteger.valueOf(40)},
+			{BigInteger.valueOf(40)},
+			{BigInteger.valueOf(40)}
+		});
+		assertEquals("BigIntegerMatrix 4x4 failed multiplication vector.", correctMatrix, matrix.multiply(vector));
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.TWO, BigInteger.valueOf(4), BigInteger.valueOf(6), BigInteger.valueOf(8)},
+			{BigInteger.TWO, BigInteger.valueOf(4), BigInteger.valueOf(6), BigInteger.valueOf(8)},
+			{BigInteger.TWO, BigInteger.valueOf(4), BigInteger.valueOf(6), BigInteger.valueOf(8)},
+			{BigInteger.TWO, BigInteger.valueOf(4), BigInteger.valueOf(6), BigInteger.valueOf(8)}
+		});
+		assertEquals("BigIntegerMatrix 4x4 failed multiplication scalar.", correctMatrix, matrix.multiply(BigInteger.TWO));
+
+		//10x10
+		matrix = new BigIntegerMatrix(grid10);
+		transformMatrix = new BigIntegerMatrix(transformGrid10_2);
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.valueOf(110), BigInteger.valueOf(165), BigInteger.valueOf(220), BigInteger.valueOf(275), BigInteger.valueOf(330), BigInteger.valueOf(385), BigInteger.valueOf(440), BigInteger.valueOf(495), BigInteger.valueOf(550), BigInteger.valueOf(605)},
+			{BigInteger.valueOf(110), BigInteger.valueOf(165), BigInteger.valueOf(220), BigInteger.valueOf(275), BigInteger.valueOf(330), BigInteger.valueOf(385), BigInteger.valueOf(440), BigInteger.valueOf(495), BigInteger.valueOf(550), BigInteger.valueOf(605)},
+			{BigInteger.valueOf(110), BigInteger.valueOf(165), BigInteger.valueOf(220), BigInteger.valueOf(275), BigInteger.valueOf(330), BigInteger.valueOf(385), BigInteger.valueOf(440), BigInteger.valueOf(495), BigInteger.valueOf(550), BigInteger.valueOf(605)},
+			{BigInteger.valueOf(110), BigInteger.valueOf(165), BigInteger.valueOf(220), BigInteger.valueOf(275), BigInteger.valueOf(330), BigInteger.valueOf(385), BigInteger.valueOf(440), BigInteger.valueOf(495), BigInteger.valueOf(550), BigInteger.valueOf(605)},
+			{BigInteger.valueOf(110), BigInteger.valueOf(165), BigInteger.valueOf(220), BigInteger.valueOf(275), BigInteger.valueOf(330), BigInteger.valueOf(385), BigInteger.valueOf(440), BigInteger.valueOf(495), BigInteger.valueOf(550), BigInteger.valueOf(605)},
+			{BigInteger.valueOf(110), BigInteger.valueOf(165), BigInteger.valueOf(220), BigInteger.valueOf(275), BigInteger.valueOf(330), BigInteger.valueOf(385), BigInteger.valueOf(440), BigInteger.valueOf(495), BigInteger.valueOf(550), BigInteger.valueOf(605)},
+			{BigInteger.valueOf(110), BigInteger.valueOf(165), BigInteger.valueOf(220), BigInteger.valueOf(275), BigInteger.valueOf(330), BigInteger.valueOf(385), BigInteger.valueOf(440), BigInteger.valueOf(495), BigInteger.valueOf(550), BigInteger.valueOf(605)},
+			{BigInteger.valueOf(110), BigInteger.valueOf(165), BigInteger.valueOf(220), BigInteger.valueOf(275), BigInteger.valueOf(330), BigInteger.valueOf(385), BigInteger.valueOf(440), BigInteger.valueOf(495), BigInteger.valueOf(550), BigInteger.valueOf(605)},
+			{BigInteger.valueOf(110), BigInteger.valueOf(165), BigInteger.valueOf(220), BigInteger.valueOf(275), BigInteger.valueOf(330), BigInteger.valueOf(385), BigInteger.valueOf(440), BigInteger.valueOf(495), BigInteger.valueOf(550), BigInteger.valueOf(605)},
+			{BigInteger.valueOf(110), BigInteger.valueOf(165), BigInteger.valueOf(220), BigInteger.valueOf(275), BigInteger.valueOf(330), BigInteger.valueOf(385), BigInteger.valueOf(440), BigInteger.valueOf(495), BigInteger.valueOf(550), BigInteger.valueOf(605)}
+		});
+		assertEquals("BigIntegerMatrix 10x10 failed multiplication BigIntegerMatrix.", correctMatrix, matrix.multiply(transformMatrix));
+		vector = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.TWO},
+			{BigInteger.valueOf(3)},
+			{BigInteger.valueOf(4)},
+			{BigInteger.valueOf(5)},
+			{BigInteger.valueOf(6)},
+			{BigInteger.valueOf(7)},
+			{BigInteger.valueOf(8)},
+			{BigInteger.valueOf(9)},
+			{BigInteger.valueOf(10)},
+			{BigInteger.valueOf(11)}
+		});
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.valueOf(440)},
+			{BigInteger.valueOf(440)},
+			{BigInteger.valueOf(440)},
+			{BigInteger.valueOf(440)},
+			{BigInteger.valueOf(440)},
+			{BigInteger.valueOf(440)},
+			{BigInteger.valueOf(440)},
+			{BigInteger.valueOf(440)},
+			{BigInteger.valueOf(440)},
+			{BigInteger.valueOf(440)}
+		});
+		assertEquals("BigIntegerMatrix 10x10 failed multiplication vector.", correctMatrix, matrix.multiply(vector));
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.TWO, BigInteger.valueOf(4), BigInteger.valueOf(6), BigInteger.valueOf(8), BigInteger.valueOf(10), BigInteger.valueOf(12), BigInteger.valueOf(14), BigInteger.valueOf(16), BigInteger.valueOf(18), BigInteger.valueOf(20)},
+			{BigInteger.TWO, BigInteger.valueOf(4), BigInteger.valueOf(6), BigInteger.valueOf(8), BigInteger.valueOf(10), BigInteger.valueOf(12), BigInteger.valueOf(14), BigInteger.valueOf(16), BigInteger.valueOf(18), BigInteger.valueOf(20)},
+			{BigInteger.TWO, BigInteger.valueOf(4), BigInteger.valueOf(6), BigInteger.valueOf(8), BigInteger.valueOf(10), BigInteger.valueOf(12), BigInteger.valueOf(14), BigInteger.valueOf(16), BigInteger.valueOf(18), BigInteger.valueOf(20)},
+			{BigInteger.TWO, BigInteger.valueOf(4), BigInteger.valueOf(6), BigInteger.valueOf(8), BigInteger.valueOf(10), BigInteger.valueOf(12), BigInteger.valueOf(14), BigInteger.valueOf(16), BigInteger.valueOf(18), BigInteger.valueOf(20)},
+			{BigInteger.TWO, BigInteger.valueOf(4), BigInteger.valueOf(6), BigInteger.valueOf(8), BigInteger.valueOf(10), BigInteger.valueOf(12), BigInteger.valueOf(14), BigInteger.valueOf(16), BigInteger.valueOf(18), BigInteger.valueOf(20)},
+			{BigInteger.TWO, BigInteger.valueOf(4), BigInteger.valueOf(6), BigInteger.valueOf(8), BigInteger.valueOf(10), BigInteger.valueOf(12), BigInteger.valueOf(14), BigInteger.valueOf(16), BigInteger.valueOf(18), BigInteger.valueOf(20)},
+			{BigInteger.TWO, BigInteger.valueOf(4), BigInteger.valueOf(6), BigInteger.valueOf(8), BigInteger.valueOf(10), BigInteger.valueOf(12), BigInteger.valueOf(14), BigInteger.valueOf(16), BigInteger.valueOf(18), BigInteger.valueOf(20)},
+			{BigInteger.TWO, BigInteger.valueOf(4), BigInteger.valueOf(6), BigInteger.valueOf(8), BigInteger.valueOf(10), BigInteger.valueOf(12), BigInteger.valueOf(14), BigInteger.valueOf(16), BigInteger.valueOf(18), BigInteger.valueOf(20)},
+			{BigInteger.TWO, BigInteger.valueOf(4), BigInteger.valueOf(6), BigInteger.valueOf(8), BigInteger.valueOf(10), BigInteger.valueOf(12), BigInteger.valueOf(14), BigInteger.valueOf(16), BigInteger.valueOf(18), BigInteger.valueOf(20)},
+			{BigInteger.TWO, BigInteger.valueOf(4), BigInteger.valueOf(6), BigInteger.valueOf(8), BigInteger.valueOf(10), BigInteger.valueOf(12), BigInteger.valueOf(14), BigInteger.valueOf(16), BigInteger.valueOf(18), BigInteger.valueOf(20)}
+		});
+		assertEquals("BigIntegerMatrix 10x10 failed multiplication scalar.", correctMatrix, matrix.multiply(BigInteger.TWO));
+	}
+
+	@Test
+	public void testDotProduct(){
+		//1x1
+		BigIntegerMatrix matrix = new BigIntegerMatrix(grid1);
+		BigIntegerMatrix transformMatrix = new BigIntegerMatrix(transformGrid1_2);
+		assertEquals("BigIntegerMatrix 1x1 failed dot product BigIntegerMatrix.", BigInteger.TWO, matrix.dotProduct(transformMatrix));
+
+		//2x2
+		matrix = new BigIntegerMatrix(grid2);
+		transformMatrix = new BigIntegerMatrix(transformGrid2_2);
+		assertEquals("BigIntegerMatrix 2x2 failed dot product BigIntegerMatrix.", BigInteger.valueOf(30), matrix.dotProduct(transformMatrix));
+
+		//3x3
+		matrix = new BigIntegerMatrix(grid3);
+		transformMatrix = new BigIntegerMatrix(transformGrid3_2);
+		assertEquals("BigIntegerMatrix 3x3 failed dot product BigIntegerMatrix.", BigInteger.valueOf(162), matrix.dotProduct(transformMatrix));
+
+		//4x4
+		matrix = new BigIntegerMatrix(grid4);
+		transformMatrix = new BigIntegerMatrix(transformGrid4_2);
+		assertEquals("BigIntegerMatrix 4x4 failed dot product BigIntegerMatrix.", BigInteger.valueOf(560), matrix.dotProduct(transformMatrix));
+
+		//10x10
+		matrix = new BigIntegerMatrix(grid10);
+		transformMatrix = new BigIntegerMatrix(transformGrid10_2);
+		assertEquals("BigIntegerMatrix 10x10 failed dot product BigIntegerMatrix.", BigInteger.valueOf(35750), matrix.dotProduct(transformMatrix));
+	}
+
+	@Test
+	public void testHadamardProduct(){
+		//1x1
+		BigIntegerMatrix matrix = new BigIntegerMatrix(grid1);
+		BigIntegerMatrix transformMatrix = new BigIntegerMatrix(transformGrid1_2);
+		BigIntegerMatrix correctMatrix = new BigIntegerMatrix(new BigInteger[][]{{BigInteger.TWO}});
+		assertEquals("BigIntegerMatrix 1x1 failed hadamard product.", correctMatrix, matrix.hadamardProduct(transformMatrix));
+
+		//2x2
+		matrix = new BigIntegerMatrix(grid2);
+		transformMatrix = new BigIntegerMatrix(transformGrid2_2);
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.TWO, BigInteger.valueOf(6)},
+			{BigInteger.TWO, BigInteger.valueOf(6)}
+		});
+		assertEquals("BigIntegerMatrix 2x2 failed hadamard product.", correctMatrix, matrix.hadamardProduct(transformMatrix));
+
+		//3x3
+		matrix = new BigIntegerMatrix(grid3);
+		transformMatrix = new BigIntegerMatrix(transformGrid3_2);
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.TWO, BigInteger.valueOf(6), BigInteger.valueOf(12)},
+			{BigInteger.TWO, BigInteger.valueOf(6), BigInteger.valueOf(12)},
+			{BigInteger.TWO, BigInteger.valueOf(6), BigInteger.valueOf(12)}
+		});
+		assertEquals("BigIntegerMatrix 3x3 failed hadamard product.", correctMatrix, matrix.hadamardProduct(transformMatrix));
+
+		//4x4
+		matrix = new BigIntegerMatrix(grid4);
+		transformMatrix = new BigIntegerMatrix(transformGrid4_2);
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.TWO, BigInteger.valueOf(6), BigInteger.valueOf(12), BigInteger.valueOf(20)},
+			{BigInteger.TWO, BigInteger.valueOf(6), BigInteger.valueOf(12), BigInteger.valueOf(20)},
+			{BigInteger.TWO, BigInteger.valueOf(6), BigInteger.valueOf(12), BigInteger.valueOf(20)},
+			{BigInteger.TWO, BigInteger.valueOf(6), BigInteger.valueOf(12), BigInteger.valueOf(20)}
+		});
+		assertEquals("BigIntegerMatrix 4x4 failed hadamard product.", correctMatrix, matrix.hadamardProduct(transformMatrix));
+
+		//10x10
+		matrix = new BigIntegerMatrix(grid10);
+		transformMatrix = new BigIntegerMatrix(transformGrid10_2);
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.TWO, BigInteger.valueOf(6), BigInteger.valueOf(12), BigInteger.valueOf(20), BigInteger.valueOf(30), BigInteger.valueOf(42), BigInteger.valueOf(56), BigInteger.valueOf(72), BigInteger.valueOf(90), BigInteger.valueOf(110)},
+			{BigInteger.TWO, BigInteger.valueOf(6), BigInteger.valueOf(12), BigInteger.valueOf(20), BigInteger.valueOf(30), BigInteger.valueOf(42), BigInteger.valueOf(56), BigInteger.valueOf(72), BigInteger.valueOf(90), BigInteger.valueOf(110)},
+			{BigInteger.TWO, BigInteger.valueOf(6), BigInteger.valueOf(12), BigInteger.valueOf(20), BigInteger.valueOf(30), BigInteger.valueOf(42), BigInteger.valueOf(56), BigInteger.valueOf(72), BigInteger.valueOf(90), BigInteger.valueOf(110)},
+			{BigInteger.TWO, BigInteger.valueOf(6), BigInteger.valueOf(12), BigInteger.valueOf(20), BigInteger.valueOf(30), BigInteger.valueOf(42), BigInteger.valueOf(56), BigInteger.valueOf(72), BigInteger.valueOf(90), BigInteger.valueOf(110)},
+			{BigInteger.TWO, BigInteger.valueOf(6), BigInteger.valueOf(12), BigInteger.valueOf(20), BigInteger.valueOf(30), BigInteger.valueOf(42), BigInteger.valueOf(56), BigInteger.valueOf(72), BigInteger.valueOf(90), BigInteger.valueOf(110)},
+			{BigInteger.TWO, BigInteger.valueOf(6), BigInteger.valueOf(12), BigInteger.valueOf(20), BigInteger.valueOf(30), BigInteger.valueOf(42), BigInteger.valueOf(56), BigInteger.valueOf(72), BigInteger.valueOf(90), BigInteger.valueOf(110)},
+			{BigInteger.TWO, BigInteger.valueOf(6), BigInteger.valueOf(12), BigInteger.valueOf(20), BigInteger.valueOf(30), BigInteger.valueOf(42), BigInteger.valueOf(56), BigInteger.valueOf(72), BigInteger.valueOf(90), BigInteger.valueOf(110)},
+			{BigInteger.TWO, BigInteger.valueOf(6), BigInteger.valueOf(12), BigInteger.valueOf(20), BigInteger.valueOf(30), BigInteger.valueOf(42), BigInteger.valueOf(56), BigInteger.valueOf(72), BigInteger.valueOf(90), BigInteger.valueOf(110)},
+			{BigInteger.TWO, BigInteger.valueOf(6), BigInteger.valueOf(12), BigInteger.valueOf(20), BigInteger.valueOf(30), BigInteger.valueOf(42), BigInteger.valueOf(56), BigInteger.valueOf(72), BigInteger.valueOf(90), BigInteger.valueOf(110)},
+			{BigInteger.TWO, BigInteger.valueOf(6), BigInteger.valueOf(12), BigInteger.valueOf(20), BigInteger.valueOf(30), BigInteger.valueOf(42), BigInteger.valueOf(56), BigInteger.valueOf(72), BigInteger.valueOf(90), BigInteger.valueOf(110)}
+		});
+		assertEquals("BigIntegerMatrix 10x10 failed hadamard product.", correctMatrix, matrix.hadamardProduct(transformMatrix));
+	}
+
+	@Test
+	public void testTranspose(){
+		//1x1
+		BigIntegerMatrix matrix = new BigIntegerMatrix(grid1);
+		BigIntegerMatrix correctMatrix = new BigIntegerMatrix(new BigInteger[][]{{BigInteger.ONE}});
+		assertEquals("BigIntegerMatrix 1x1 failed transpose.", correctMatrix, matrix.transpose());
+
+		//2x2
+		matrix = new BigIntegerMatrix(grid2);
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE, BigInteger.ONE},
+			{BigInteger.TWO, BigInteger.TWO}
+		});
+		assertEquals("BigIntegerMatrix 2x2 failed transpose.", correctMatrix, matrix.transpose());
+
+		//3x3
+		matrix = new BigIntegerMatrix(grid3);
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE, BigInteger.ONE, BigInteger.ONE},
+			{BigInteger.TWO, BigInteger.TWO, BigInteger.TWO},
+			{BigInteger.valueOf(3), BigInteger.valueOf(3), BigInteger.valueOf(3)}
+		});
+		assertEquals("BigIntegerMatrix 3x3 failed transpose.", correctMatrix, matrix.transpose());
+
+		//4x4
+		matrix = new BigIntegerMatrix(grid4);
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE, BigInteger.ONE, BigInteger.ONE, BigInteger.ONE},
+			{BigInteger.TWO, BigInteger.TWO, BigInteger.TWO, BigInteger.TWO},
+			{BigInteger.valueOf(3), BigInteger.valueOf(3), BigInteger.valueOf(3), BigInteger.valueOf(3)},
+			{BigInteger.valueOf(4), BigInteger.valueOf(4), BigInteger.valueOf(4), BigInteger.valueOf(4)}
+		});
+		assertEquals("BigIntegerMatrix 4x4 failed transpose.", correctMatrix, matrix.transpose());
+
+		//10x10
+		matrix = new BigIntegerMatrix(grid10);
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE, BigInteger.ONE, BigInteger.ONE, BigInteger.ONE, BigInteger.ONE, BigInteger.ONE, BigInteger.ONE, BigInteger.ONE, BigInteger.ONE, BigInteger.ONE},
+			{BigInteger.TWO, BigInteger.TWO, BigInteger.TWO, BigInteger.TWO, BigInteger.TWO, BigInteger.TWO, BigInteger.TWO, BigInteger.TWO, BigInteger.TWO, BigInteger.TWO},
+			{BigInteger.valueOf(3), BigInteger.valueOf(3), BigInteger.valueOf(3), BigInteger.valueOf(3), BigInteger.valueOf(3), BigInteger.valueOf(3), BigInteger.valueOf(3), BigInteger.valueOf(3), BigInteger.valueOf(3), BigInteger.valueOf(3)},
+			{BigInteger.valueOf(4), BigInteger.valueOf(4), BigInteger.valueOf(4), BigInteger.valueOf(4), BigInteger.valueOf(4), BigInteger.valueOf(4), BigInteger.valueOf(4), BigInteger.valueOf(4), BigInteger.valueOf(4), BigInteger.valueOf(4)},
+			{BigInteger.valueOf(5), BigInteger.valueOf(5), BigInteger.valueOf(5), BigInteger.valueOf(5), BigInteger.valueOf(5), BigInteger.valueOf(5), BigInteger.valueOf(5), BigInteger.valueOf(5), BigInteger.valueOf(5), BigInteger.valueOf(5)},
+			{BigInteger.valueOf(6), BigInteger.valueOf(6), BigInteger.valueOf(6), BigInteger.valueOf(6), BigInteger.valueOf(6), BigInteger.valueOf(6), BigInteger.valueOf(6), BigInteger.valueOf(6), BigInteger.valueOf(6), BigInteger.valueOf(6)},
+			{BigInteger.valueOf(7), BigInteger.valueOf(7), BigInteger.valueOf(7), BigInteger.valueOf(7), BigInteger.valueOf(7), BigInteger.valueOf(7), BigInteger.valueOf(7), BigInteger.valueOf(7), BigInteger.valueOf(7), BigInteger.valueOf(7)},
+			{BigInteger.valueOf(8), BigInteger.valueOf(8), BigInteger.valueOf(8), BigInteger.valueOf(8), BigInteger.valueOf(8), BigInteger.valueOf(8), BigInteger.valueOf(8), BigInteger.valueOf(8), BigInteger.valueOf(8), BigInteger.valueOf(8)},
+			{BigInteger.valueOf(9), BigInteger.valueOf(9), BigInteger.valueOf(9), BigInteger.valueOf(9), BigInteger.valueOf(9), BigInteger.valueOf(9), BigInteger.valueOf(9), BigInteger.valueOf(9), BigInteger.valueOf(9), BigInteger.valueOf(9)},
+			{BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10), BigInteger.valueOf(10)},
+		});
+		assertEquals("BigIntegerMatrix 10x10 failed transpose.", correctMatrix, matrix.transpose());
+	}
+
+	@Test
+	public void testDeterminant(){
+		//1x1
+		BigIntegerMatrix matrix = new BigIntegerMatrix(grid1);
+		assertEquals("BigIntegerMatrix 1x1 failed determinant.", BigInteger.ONE, matrix.determinant());
+
+		//2x2
+		matrix = new BigIntegerMatrix(grid2);
+		assertEquals("BigIntegerMatrix 2x2 failed determinant1.", BigInteger.ZERO, matrix.determinant());
+		matrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE, BigInteger.valueOf(4)},
+			{BigInteger.valueOf(4), BigInteger.ONE}
+		});
+		assertEquals("BigIntegerMatrix 2x2 failed determinant2.", BigInteger.valueOf(-15), matrix.determinant());
+
+		//3x3
+		matrix = new BigIntegerMatrix(grid3);
+		assertEquals("BigIntegerMatrix 3x3 failed determinant1.", BigInteger.ZERO, matrix.determinant());
+		matrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE, BigInteger.valueOf(4), BigInteger.TWO},
+			{BigInteger.TWO, BigInteger.valueOf(4), BigInteger.ONE},
+			{BigInteger.valueOf(4), BigInteger.ONE, BigInteger.TWO}
+		});
+		assertEquals("BigIntegerMatrix 3x3 failed determinant2.", BigInteger.valueOf(-21), matrix.determinant());
+
+		//4x4
+		matrix = new BigIntegerMatrix(grid4);
+		assertEquals("BigIntegerMatrix 4x4 failed determiant1.", BigInteger.ZERO, matrix.determinant());
+		matrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.ONE},
+			{BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.ONE, BigInteger.TWO},
+			{BigInteger.valueOf(4), BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)}
+		});
+		assertEquals("BigIntegerMatrix 4x4 failed determinant2.", BigInteger.valueOf(160), matrix.determinant());
+
+		//10x10
+		matrix = new BigIntegerMatrix(grid10);
+		assertEquals("BigIntegerMatrix 10x10 failed determinant1.", BigInteger.ZERO, matrix.determinant());
+		matrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10)},
+			{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.ONE},
+			{BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.ONE, BigInteger.TWO},
+			{BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)},
+			{BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5)},
+			{BigInteger.valueOf(7), BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6)},
+			{BigInteger.valueOf(8), BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7)},
+			{BigInteger.valueOf(9), BigInteger.valueOf(10), BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.valueOf(5), BigInteger.valueOf(6), BigInteger.valueOf(7), BigInteger.valueOf(8)},
+			{BigInteger.ZERO,  BigInteger.ZERO, BigInteger.ZERO, BigInteger.ZERO, BigInteger.ZERO, BigInteger.ZERO, BigInteger.ZERO, BigInteger.ZERO, BigInteger.ZERO, BigInteger.ONE}
+		});
+		assertEquals("BigIntegerMatrix 10x10 failed determinant2.", BigInteger.valueOf(-10000000), matrix.determinant());
+	}
+
+	@Test
+	public void testCofactor(){
+		//1x1
+		BigIntegerMatrix matrix = new BigIntegerMatrix(grid1);
+		BigIntegerMatrix correctMatrix = new BigIntegerMatrix(grid1);
+		assertEquals("BigIntegerMatrix 1x1 failed cofactor.", correctMatrix, matrix.cofactor());
+
+		//2x2
+		matrix = new BigIntegerMatrix(grid2);
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.TWO, BigInteger.ONE.negate()},
+			{BigInteger.TWO.negate(), BigInteger.ONE}
+		});
+		assertEquals("BigIntegerMatrix 2x2 failed cofactor.", correctMatrix, matrix.cofactor());
+
+		//3x3
+		matrix = new BigIntegerMatrix(grid3);
+		correctMatrix = new BigIntegerMatrix(3, 3, BigInteger.ZERO);
+		assertEquals("BigIntegerMatrix 3x3 failed cofactor1.", correctMatrix, matrix.cofactor());
+		matrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE, BigInteger.valueOf(4), BigInteger.TWO},
+			{BigInteger.TWO, BigInteger.valueOf(4), BigInteger.ONE},
+			{BigInteger.valueOf(4), BigInteger.ONE, BigInteger.TWO}
+		});
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.valueOf(7), BigInteger.ZERO, BigInteger.valueOf(-14)},
+			{BigInteger.valueOf(-6), BigInteger.valueOf(-6), BigInteger.valueOf(15)},
+			{BigInteger.valueOf(-4), BigInteger.valueOf(3), BigInteger.valueOf(-4)}
+		});
+		assertEquals("BigIntegerMatrix 3x3 failed cofactor2.", correctMatrix, matrix.cofactor());
+
+		//4x4
+		matrix = new BigIntegerMatrix(grid4);
+		correctMatrix = new BigIntegerMatrix(4, 4, BigInteger.ZERO);
+		assertEquals("BigIntegerMatrix 4x4 failed cofactor1.", correctMatrix, matrix.cofactor());
+		matrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.ONE},
+			{BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.ONE, BigInteger.TWO},
+			{BigInteger.valueOf(4), BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)}
+		});
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.valueOf(-36), BigInteger.valueOf(4), BigInteger.valueOf(4), BigInteger.valueOf(44)},
+			{BigInteger.valueOf(4), BigInteger.valueOf(4), BigInteger.valueOf(44), BigInteger.valueOf(-36)},
+			{BigInteger.valueOf(4), BigInteger.valueOf(44), BigInteger.valueOf(-36), BigInteger.valueOf(4)},
+			{BigInteger.valueOf(44), BigInteger.valueOf(-36), BigInteger.valueOf(4), BigInteger.valueOf(4)}
+		});
+		assertEquals("BigIntegerMatrix 4x4 failed cofactor2.", correctMatrix, matrix.cofactor());
+
+		//10x10
+		//?Skipping 10x10 test because test took > 5s by itself
+		/*
+		matrix = new BigIntegerMatrix(grid10);
+		correctMatrix = new BigIntegerMatrix(10, BigInteger.valueOf(10), 0);
+		assertEquals("BigIntegerMatrix 10x10 failed cofactor1.", correctMatrix, matrix.cofactor());
+		*/
+	}
+
+	@Test
+	public void testPower(){
+		//1x1
+		BigIntegerMatrix matrix = new BigIntegerMatrix(grid1);
+		BigIntegerMatrix correctMatrix = new BigIntegerMatrix(new BigInteger[][]{{BigInteger.ONE}});
+		assertEquals("BigIntegerMatrix 1x1 failed power.", correctMatrix, matrix.pow(3));
+
+		//2x2
+		matrix = new BigIntegerMatrix(grid2);
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.valueOf(9), BigInteger.valueOf(18)},
+			{BigInteger.valueOf(9), BigInteger.valueOf(18)}
+		});
+		assertEquals("BigIntegerMatrix 2x2 failed power.", correctMatrix, matrix.pow(3));
+
+		//3x3
+		matrix = new BigIntegerMatrix(grid3);
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.valueOf(36), BigInteger.valueOf(72), BigInteger.valueOf(108)},
+			{BigInteger.valueOf(36), BigInteger.valueOf(72), BigInteger.valueOf(108)},
+			{BigInteger.valueOf(36), BigInteger.valueOf(72), BigInteger.valueOf(108)}
+		});
+		assertEquals("BigIntegerMatrix 3x3 failed power.", correctMatrix, matrix.pow(3));
+
+		//4x4
+		//0
+		matrix = new BigIntegerMatrix(grid4);
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE, BigInteger.ONE, BigInteger.ONE, BigInteger.ONE},
+			{BigInteger.ONE, BigInteger.ONE, BigInteger.ONE, BigInteger.ONE},
+			{BigInteger.ONE, BigInteger.ONE, BigInteger.ONE, BigInteger.ONE},
+			{BigInteger.ONE, BigInteger.ONE, BigInteger.ONE, BigInteger.ONE}
+		});
+		assertEquals("BigIntegerMatrix 4x4 failed power 0.", correctMatrix, matrix.pow(0));
+		//1
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)}
+		});
+		assertEquals("BigIntegerMatrix 4x4 failed power 1.", correctMatrix, matrix.pow(1));
+		//3
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.valueOf(100), BigInteger.valueOf(200), BigInteger.valueOf(300), BigInteger.valueOf(400)},
+			{BigInteger.valueOf(100), BigInteger.valueOf(200), BigInteger.valueOf(300), BigInteger.valueOf(400)},
+			{BigInteger.valueOf(100), BigInteger.valueOf(200), BigInteger.valueOf(300), BigInteger.valueOf(400)},
+			{BigInteger.valueOf(100), BigInteger.valueOf(200), BigInteger.valueOf(300), BigInteger.valueOf(400)}
+		});
+		assertEquals("BigIntegerMatrix 4x4 failed power 3.", correctMatrix, matrix.pow(3));
+
+		//10x10
+		matrix = new BigIntegerMatrix(grid10);
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.valueOf(3025), BigInteger.valueOf(6050), BigInteger.valueOf(9075), BigInteger.valueOf(12100), BigInteger.valueOf(15125), BigInteger.valueOf(18150), BigInteger.valueOf(21175), BigInteger.valueOf(24200), BigInteger.valueOf(27225), BigInteger.valueOf(30250)},
+			{BigInteger.valueOf(3025), BigInteger.valueOf(6050), BigInteger.valueOf(9075), BigInteger.valueOf(12100), BigInteger.valueOf(15125), BigInteger.valueOf(18150), BigInteger.valueOf(21175), BigInteger.valueOf(24200), BigInteger.valueOf(27225), BigInteger.valueOf(30250)},
+			{BigInteger.valueOf(3025), BigInteger.valueOf(6050), BigInteger.valueOf(9075), BigInteger.valueOf(12100), BigInteger.valueOf(15125), BigInteger.valueOf(18150), BigInteger.valueOf(21175), BigInteger.valueOf(24200), BigInteger.valueOf(27225), BigInteger.valueOf(30250)},
+			{BigInteger.valueOf(3025), BigInteger.valueOf(6050), BigInteger.valueOf(9075), BigInteger.valueOf(12100), BigInteger.valueOf(15125), BigInteger.valueOf(18150), BigInteger.valueOf(21175), BigInteger.valueOf(24200), BigInteger.valueOf(27225), BigInteger.valueOf(30250)},
+			{BigInteger.valueOf(3025), BigInteger.valueOf(6050), BigInteger.valueOf(9075), BigInteger.valueOf(12100), BigInteger.valueOf(15125), BigInteger.valueOf(18150), BigInteger.valueOf(21175), BigInteger.valueOf(24200), BigInteger.valueOf(27225), BigInteger.valueOf(30250)},
+			{BigInteger.valueOf(3025), BigInteger.valueOf(6050), BigInteger.valueOf(9075), BigInteger.valueOf(12100), BigInteger.valueOf(15125), BigInteger.valueOf(18150), BigInteger.valueOf(21175), BigInteger.valueOf(24200), BigInteger.valueOf(27225), BigInteger.valueOf(30250)},
+			{BigInteger.valueOf(3025), BigInteger.valueOf(6050), BigInteger.valueOf(9075), BigInteger.valueOf(12100), BigInteger.valueOf(15125), BigInteger.valueOf(18150), BigInteger.valueOf(21175), BigInteger.valueOf(24200), BigInteger.valueOf(27225), BigInteger.valueOf(30250)},
+			{BigInteger.valueOf(3025), BigInteger.valueOf(6050), BigInteger.valueOf(9075), BigInteger.valueOf(12100), BigInteger.valueOf(15125), BigInteger.valueOf(18150), BigInteger.valueOf(21175), BigInteger.valueOf(24200), BigInteger.valueOf(27225), BigInteger.valueOf(30250)},
+			{BigInteger.valueOf(3025), BigInteger.valueOf(6050), BigInteger.valueOf(9075), BigInteger.valueOf(12100), BigInteger.valueOf(15125), BigInteger.valueOf(18150), BigInteger.valueOf(21175), BigInteger.valueOf(24200), BigInteger.valueOf(27225), BigInteger.valueOf(30250)},
+			{BigInteger.valueOf(3025), BigInteger.valueOf(6050), BigInteger.valueOf(9075), BigInteger.valueOf(12100), BigInteger.valueOf(15125), BigInteger.valueOf(18150), BigInteger.valueOf(21175), BigInteger.valueOf(24200), BigInteger.valueOf(27225), BigInteger.valueOf(30250)}
+		});
+		assertEquals("BigIntegerMatrix 10x10 failed power.", correctMatrix, matrix.pow(3));
+	}
+
+	@Test
+	public void testAdjoint(){
+		//1x1
+		BigIntegerMatrix matrix = new BigIntegerMatrix(grid1);
+		BigIntegerMatrix correctMatrix = new BigIntegerMatrix(grid1);
+		assertEquals("BigIntegerMatrix 1x1 failed adjoint.", correctMatrix, matrix.adjoint());
+
+		//2x2
+		matrix = new BigIntegerMatrix(grid2);
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.TWO, BigInteger.TWO.negate()},
+			{BigInteger.ONE.negate(), BigInteger.ONE}
+		});
+		assertEquals("BigIntegerMatrix 2x2 failed adjoint.", correctMatrix, matrix.adjoint());
+
+		//3x3
+		matrix = new BigIntegerMatrix(grid3);
+		correctMatrix = new BigIntegerMatrix(3, 3, BigInteger.ZERO);
+		assertEquals("BigIntegerMatrix 3x3 failed adjoint.", correctMatrix, matrix.adjoint());
+
+		//4x4
+		matrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.ONE},
+			{BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.ONE, BigInteger.TWO},
+			{BigInteger.valueOf(4), BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)}
+		});
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.valueOf(-36), BigInteger.valueOf(4), BigInteger.valueOf(4), BigInteger.valueOf(44)},
+			{BigInteger.valueOf(4), BigInteger.valueOf(4), BigInteger.valueOf(44), BigInteger.valueOf(-36)},
+			{BigInteger.valueOf(4), BigInteger.valueOf(44), BigInteger.valueOf(-36), BigInteger.valueOf(4)},
+			{BigInteger.valueOf(44), BigInteger.valueOf(-36), BigInteger.valueOf(4), BigInteger.valueOf(4)}
+		});
+		assertEquals("BigIntegerMatrix 4x4 failed adjoint.", correctMatrix, matrix.adjoint());
+
+		//10x10
+		//?Skipping 10x10 test because test took > 5s by itself
+		/*
+		matrix = new BigIntegerMatrix(grid10);
+		correctMatrix = new BigIntegerMatrix(10, BigInteger.valueOf(10), 0);
+		assertEquals("BigIntegerMatrix 10x10 failed adjoint.", correctMatrix, matrix.adjoint());
+		*/
+	}
+
+	@Test
+	public void testInverse(){
+		//1x1
+		BigIntegerMatrix matrix = new BigIntegerMatrix(grid1);
+		BigIntegerMatrix correctMatrix = new BigIntegerMatrix(grid1);
+		assertEquals("BigIntegerMatrix 1x1 failed inverse.", correctMatrix, matrix.inverse());
+
+		//2x2
+		matrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE, BigInteger.valueOf(4)},
+			{BigInteger.valueOf(4), BigInteger.ONE}
+		});
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ZERO.negate(), BigInteger.ZERO},
+			{BigInteger.ZERO, BigInteger.ZERO.negate()}
+		});
+		assertEquals("BigIntegerMatrix 2x2 failed inverse.", correctMatrix, matrix.inverse());
+
+		//3x3
+		matrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE, BigInteger.valueOf(4), BigInteger.TWO},
+			{BigInteger.TWO, BigInteger.valueOf(4), BigInteger.ONE},
+			{BigInteger.valueOf(4), BigInteger.ONE, BigInteger.TWO}
+		});
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ZERO.negate(), BigInteger.ZERO, BigInteger.ZERO},
+			{BigInteger.ZERO, BigInteger.ZERO, BigInteger.ZERO.negate()},
+			{BigInteger.ZERO, BigInteger.ZERO.negate(), BigInteger.ZERO}
+		});
+		assertEquals("BigIntegerMatrix 3x3 failed inverse.", correctMatrix, matrix.inverse());
+
+		//4x4
+		matrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4)},
+			{BigInteger.TWO, BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.ONE},
+			{BigInteger.valueOf(3), BigInteger.valueOf(4), BigInteger.ONE, BigInteger.TWO},
+			{BigInteger.valueOf(4), BigInteger.ONE, BigInteger.TWO, BigInteger.valueOf(3)}
+		});
+		correctMatrix = new BigIntegerMatrix(new BigInteger[][]{
+			{BigInteger.ZERO.negate(), BigInteger.ZERO, BigInteger.ZERO, BigInteger.ZERO},
+			{BigInteger.ZERO, BigInteger.ZERO, BigInteger.ZERO, BigInteger.ZERO.negate()},
+			{BigInteger.ZERO, BigInteger.ZERO, BigInteger.ZERO.negate(), BigInteger.ZERO},
+			{BigInteger.ZERO, BigInteger.ZERO.negate(), BigInteger.ZERO, BigInteger.ZERO}
+		});
+		assertEquals("BigIntegerMatrix 4x4 failed inverse.", correctMatrix, matrix.inverse());
+
+		//10x10
+		//?Skipped 10x10 because it would take a long time to compute
+	}
+}