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

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 C# / C Sharp » Data Types » double Screenshots
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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 1 Compute the area of a circle 2 the differences between int and double 3 Implement the Pythagorean Theorem 4 Talking to Mars: double value calculation 5 converts Fahrenheit to Celsius 6 Epsilon, PositiveInfinity, NegativeInfinity, MaxValue, MinValue 7 double number format: 0:C, 0:D9, 0:E, 0:F3, 0:N, 0:X, 0:x 8 Format double value 9 Get Decimal Places 10 Automatic conversion from double to string 11 An int, a short, a float, and a double are added together giving a double result. 12 Test to see if a double is a finite number (is not NaN or Infinity). 13 Double.Epsilon Field represents the smallest positive Double value that is greater than zero. 14 Availible Double Range 15 Truncates the specified double. 16 Shifts the given value into the range