NGWS SDK Documentation  

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Math.Asin

Returns the arc sine (in radians) of a specified number. The arc sine is the angle whose sine is the specified number.

[Visual Basic]
Public Shared Function Asin( _
   ByVal d As Double _
) As Double
[C#]
public static double Asin(
   double d
);
[C++]
public: static double Asin(
   double d
);
[JScript]
public static function Asin(
   d : double
) : double;

Parameters

d
A number representing a sine,-1 d 1.

Return Value

Returns an angle q, measured in radians, such that-/2 q /2. Returns NaN if d <-1 or d > 1.

Remarks

A positive result represents a counterclockwise angle from the x-axis; a negative result represents a clockwise angle. To convert the result from radians to degrees, multiply it by 180/.

See Also

Math Class | Math Members | System Namespace