Asin Method

Math.Asin Method (Double)

 

Returns the angle whose sine is the specified number.

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

static member Asin : 
        d:float -> float

Parameters

d
Type: System.Double

A number representing a sine, where d must be greater than or equal to -1, but less than or equal to 1.

Return Value

Type: System.Double

An angle, θ, measured in radians, such that -π/2 θπ/2

-or-

NaN if d < -1 or d > 1 or d equals NaN.

A positive return value represents a counterclockwise angle from the x-axis; a negative return value represents a clockwise angle.

Multiply the return value by 180/Math.PI to convert from radians to degrees.

The following example uses Asin to assist in the computation of the inner angles of a given trapezoid.

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

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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