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Abs Method (Double)

Math.Abs Method (Double)

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

Namespace:  System
Assemblies:   mscorlib (in mscorlib.dll)
  System.Runtime.Extensions (in System.Runtime.Extensions.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

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone Silverlight 8.1, Windows Phone Silverlight 8

Portable Class Library

Supported in: Portable Class Library
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