Is Nearly Equal : double « Data Types « C# / C Sharp

Is Nearly Equal

        

using System;
using System.Collections.Generic;


namespace Test
{

    class TestUtilities
    {
        // allow last three digits to deviate
        public static readonly double TargetPrecision = Math.Pow(2.0, -42);

        // equality of reals

        public static bool IsNearlyEqual(double x, double y)
        {
            return (IsNearlyEqual(x, y, TargetPrecision));
        }

        public static bool IsNearlyEqual(double x, double y, double e)
        {

            if (2.0 * Math.Abs(x - y) <= e * (Math.Abs(x) + Math.Abs(y)))
            {
                return (true);
            }
            else
            {
                return (false);
            }

        }


    }

}

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Is Nearly Equal : double « Data Types « C# / C Sharp

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