1 files changed, 50 insertions, 0 deletions
diff --git a/src/Java/gtPlusPlus/core/util/math/MathUtils.java b/src/Java/gtPlusPlus/core/util/math/MathUtils.java
index 3df5693bc3..75d8452975 100644
--- a/src/Java/gtPlusPlus/core/util/math/MathUtils.java
+++ b/src/Java/gtPlusPlus/core/util/math/MathUtils.java
@@ -29,6 +29,11 @@ public class MathUtils {
 		return randomNum;
 	}
 	
+	public static double getChanceOfXOverYRuns(double x, double y){
+		double z = (1-Math.pow((1-x), y));
+	return z;
+	}
+	
 	
 	/**
 	 * Returns a psuedo-random number between min and max, inclusive.
@@ -103,6 +108,19 @@ public class MathUtils {
 	public static double decimalRoundingToWholes(double d) {
 		return 5*(Math.round(d/5));
 	}
+	
+	public static int roundToClosestMultiple(double number, int multiple) {
+        int result = multiple;
+        if (number % multiple == 0) {
+            return (int) number;
+        }
+        // If not already multiple of given number
+        if (number % multiple != 0) {
+            int division = (int) ((number / multiple) + 1);
+            result = division * multiple;
+        }
+        return result;
+    }
 
 	
 	/**
@@ -209,5 +227,37 @@ public class MathUtils {
 		Utils.LOG_WARNING("It will decode into "+Integer.decode(temp)+".");
 		return Integer.decode(temp);
 	}
+	
+	public static long[] simplifyNumbersToSmallestForm(long[] inputArray){
+		long GCD = gcd(inputArray);
+		long[] outputArray = new long[inputArray.length];
+		for (int i=0;i<inputArray.length;i++){
+			if (GCD != 0)
+			outputArray[i] = (inputArray[i]/GCD);
+			else
+				outputArray[i] = inputArray[i];
+		}
+		if (outputArray.length > 0)
+		return outputArray;
+		return null;
+	}
+	
+	private static long gcd(long a, long b){
+	    while (b > 0)
+	    {
+	        long temp = b;
+	        b = a % b; // % is remainder
+	        a = temp;
+	    }
+	    return a;
+	}
+	
+	private static long gcd(long[] input){
+	    long result = input[0];
+	    for(int i = 1; i < input.length; i++) result = gcd(result, input[i]);
+	    return result;
+	}
+	
+	
 
 }