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# Math.Floor Method (Decimal)

Visual Studio 2008

Returns the largest integer less than or equal to the specified decimal number.

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

## Syntax

```public static function Floor(
d : decimal
) : decimal
```

#### Parameters

d
Type: System.Decimal

A decimal number.

#### Return Value

Type: System.Decimal
The largest integer less than or equal to d.

## Remarks

The behavior of this method follows IEEE Standard 754, section 4. This kind of rounding is sometimes called rounding toward negative infinity. In other words, if d is positive, any fractional component is truncated. If d is negative, the presence of any fractional component causes it to be rounded to the smaller integer. The operation of this method differs from the Ceiling method, which supports rounding toward positive infinity.

## Examples

The following example illustrates the Math.Floor(Decimal) method and contrasts it with the Ceiling(Decimal) method.

No code example is currently available or this language may not be supported.

## Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

## Version Information

#### .NET Framework

Supported in: 3.5, 3.0, 2.0