Added functions to check for palindromes and convert nums to bin strings

Algorithms.lua

@@ -1,7 +1,7 @@
 --luaClasses/Algorithms.lua
 --Matthew Ellison
 -- Created: 02-04-19
---Modified: 06-01-21
+--Modified: 06-29-21
 --This is a file of algorithms that I have found it useful to keep around at all times
 --[[
 	Copyright (C) 2021  Matthew Ellison
@@ -361,3 +361,33 @@ function factorial(num)
 	end
 	return fact;
 end
+
+--Returns true if the string passed in is a palindrome
+function isPalindrome(str)
+	local rev = string.reverse(str);
+	if(str == rev) then
+		return true;
+	else
+		return false;
+	end
+end
+
+--Converts a number to its binary equivalent
+function toBin(num)
+	--Convert the number to a binary string
+	local binNum = "";
+	while(num > 0) do
+		local rest = math.fmod(num, 2);
+		if(rest == 1) then
+			binNum = binNum .. "1";
+		else
+			binNum = binNum .. "0";
+		end
+		num = (num - rest) / 2;
+	end
+	binNum = string.reverse(binNum);
+	if(binNum == "") then
+		binNum = "0";
+	end
+	return binNum;
+end