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Math.Truncate Method (Double)

Calculates the integral part of a specified double-precision floating-point number.

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

public static double Truncate(
	double d
)

Parameters

d
Type: System.Double
A number to truncate.

Return Value

Type: System.Double
The integral part of d; that is, the number that remains after any fractional digits have been discarded, or one of the values listed in the following table.

Truncate rounds d to the nearest integer towards zero.

The following example calls the Truncate(Double) method to truncate both a positive and a negative Double value.


double floatNumber;

floatNumber = 32.7865;
// Displays 32      
Console.WriteLine(Math.Truncate(floatNumber));

floatNumber = -32.9012;
// Displays -32       
Console.WriteLine(Math.Truncate(floatNumber));


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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