Truncate Method (Double)
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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.

d

Return value

NaN

NaN

NegativeInfinity

NegativeInfinity

PositiveInfinity

PositiveInfinity

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));

Universal Windows Platform
Available since 4.5
.NET Framework
Available since 2.0
Portable Class Library
Supported in: portable .NET platforms
Windows Phone Silverlight
Available since 8.0
Windows Phone
Available since 8.1
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