From d5203db4e01f1e74135ecb2d1c9ffbb40489cb9b Mon Sep 17 00:00:00 2001
From: Matthew Ellison <m_ellison@ymail.com>
Date: Mon, 7 Feb 2022 15:47:34 +0000
Subject: [PATCH] Added power function

---
 .../com/mattrixwv/matrix/IntegerMatrix.java   | 26 ++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/src/main/java/com/mattrixwv/matrix/IntegerMatrix.java b/src/main/java/com/mattrixwv/matrix/IntegerMatrix.java
index 0f64b18..1de8305 100644
--- a/src/main/java/com/mattrixwv/matrix/IntegerMatrix.java
+++ b/src/main/java/com/mattrixwv/matrix/IntegerMatrix.java
@@ -1,7 +1,7 @@
 //Matrix/src/main/java/com/mattrixwv/IntegerMatrix.java
 //Mattrixwv
 // Created: 02-01-22
-//Modified: 02-03-22
+//Modified: 02-07-22
 package com.mattrixwv.matrix;
 
 
@@ -10,6 +10,7 @@ import java.util.StringJoiner;
 import com.mattrixwv.matrix.exceptions.InvalidCoordinatesException;
 import com.mattrixwv.matrix.exceptions.InvalidGeometryException;
 import com.mattrixwv.matrix.exceptions.InvalidRowSizeException;
+import com.mattrixwv.matrix.exceptions.InvalidScalarException;
 
 
 public class IntegerMatrix{
@@ -504,6 +505,29 @@ public class IntegerMatrix{
 		//Return the new matrix
 		return new IntegerMatrix(newGrid);
 	}
+	public IntegerMatrix pow(int power){
+		//Make sure the matrix is square so it can be multiplied
+		if(!isSquare()){
+			throw new InvalidGeometryException("The matrix must be square to raise it to a power");
+		}
+		//Make sure the power is positive
+		if(power < 0){
+			throw new InvalidScalarException("The power must be >= 0");
+		}
+		else if(power == 0){
+			return new IntegerMatrix(getNumRows(), getNumCols(), 1);
+		}
+
+		//Create a new matrix for the product
+		IntegerMatrix newMatrix = clone();
+		//Multiply the current grid power times
+		for(int currentPower = 1;currentPower < power;++currentPower){
+			newMatrix = newMatrix.multiply(this);
+		}
+
+		//Return the new grid
+		return newMatrix;
+	}
 	public int dotProduct(IntegerMatrix rightSide){
 		//Make sure the matrices have compatable geometry
 		if(getNumCols() != rightSide.getNumRows()){