Go4Expert (http://www.go4expert.com/)
-   C# (http://www.go4expert.com/articles/c-sharp-tutorials/)
-   -   Custom Math Class (http://www.go4expert.com/articles/custom-math-class-t28457/)

 pein87 28May2012 00:56

Custom Math Class

Custom Math Class that can check if a number is even or odd, calculate your rental payment, mean, percent, and percentage of a number. My custom class for some math problems, including a function to calculate payment on a house or rental agreement.

### The Code

This class is used to calculate various different types math problems that are not covered in the regular math class.

Code: CSharp

`using System;/* My custom math algorithms for my pet projects */namespace rOtano{    public class roMath    {        /* returns a ratio or percent of the two numbers */        public double ratio(double numer, double denom, int percent = 0)        {            double ratio = 0;            if (numer == 0 || denom == 0)            {                return 0;            }            else            {                switch (percent)                {                    case 1:                        ratio = (numer / denom) * 100;                        break;                    case 0:                        ratio = numer / denom;                        break;                    default:                        ratio = numer / denom;                        break;                }            }            return ratio;        }        /* calculates the number that makes up the percentage of another number */        public double percentageOf(double denom, double percent)        {            return (denom * percent) / 100;        }        /* caluculates the hypotenuse of a triangle */        static double Hypotenuse(double A, double B)        {            return Math.Sqrt((A * A) + (B * B));        }        /* calculates the rental payment */        static decimal RentalPayment(decimal Principle, decimal IntRate, decimal PayPerYear, decimal NumYears)        {            decimal numer, denom;            double b, e;            numer = IntRate * Principle / PayPerYear;            e = (double)-(PayPerYear * NumYears);            b = (double)(IntRate / PayPerYear) + 1;            denom = 1 - (decimal)Math.Pow(b, e);            return numer / denom;        }        /* function determines if the number is even or not and accepts only ints, not decimals */        static int isEven(int Number)        {            return (Number % 2) != 0 ? 0 : 1;        }        /* function determines if the number is odd or not and accepts only ints, not decimals */        static int isOdd(int Number)        {            return (Number % 2) != 0 ? 1 : 0;        }        public double mean(int[] numbList)        {            int i, listSize = numbList.Length;            double mean = 0;            if (listSize == 1)            {                return 0;            }            else            {                for (i = 0; i < listSize; i++)                {                    mean += numbList[i];                }            }            return mean / listSize;        }    }}`

 All times are GMT +5.5. The time now is 07:25.