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Math.Sqrt Method

Returns the square root of a specified number.

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

static member Sqrt : 
        d:float -> float

Parameters

d
Type: System.Double

The number whose square root is to be found.

Return Value

Type: System.Double
One of the values in the following table.

d parameter

Return value

Zero or positive

The positive square root of d.

Negative

NaN

Equals NaN

NaN

Equals PositiveInfinity

PositiveInfinity

The square root of the area of a square represents the length of any side of the square. The following example displays the area of some cities in the United States and gives an impression of each city's size if it were represented by a square.

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

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

.NET for Windows Phone apps

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

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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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