Math.Abs Method (Double)


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Returns the absolute value of a double-precision floating-point number.

Namespace:   System
Assembly:  mscorlib (in mscorlib.dll)

public static double Abs(
	double value


Type: System.Double

A number that is greater than or equal to Double.MinValue, but less than or equal to Double.MaxValue.

Return Value

Type: System.Double

A double-precision floating-point number, x, such that 0 x Double.MaxValue.

The absolute value of a Double is its numeric value without its sign. For example, the absolute value of both 1.2e03 and -1.2e03 is 1.2e03.

If value is equal to NegativeInfinity or PositiveInfinity, the return value is PositiveInfinity. If value is equal to NaN, the return value is NaN.

The following example uses the Abs(Double) method to get the absolute value of a number of Double values.

using System;

public class Example
   public static void Main()
      double[] doubles = { Double.MaxValue, 16.354e-17, 15.098123, 0, 
                           -19.069713, -15.058e18, Double.MinValue };
      foreach (double value in doubles)
         Console.WriteLine("Abs({0}) = {1}", value, Math.Abs(value));
// The example displays the following output:
//       Abs(1.79769313486232E+308) = 1.79769313486232E+308
//       Abs(1.6354E-16) = 1.6354E-16
//       Abs(15.098123) = 15.098123
//       Abs(0) = 0
//       Abs(-19.069713) = 19.069713
//       Abs(-1.5058E+19) = 1.5058E+19
//       Abs(-1.79769313486232E+308) = 1.79769313486232E+308

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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