asin(float)

Gets the arc sine of a value.

float asin(
    float fValue
);

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Parameters

fValue

Value to get the arc sine of.

Description

Arc sine is the inverse of the sin() function. Thus, given an fValue that is some ratio of the opposite side to the hypotenuse of a right triangle, asin() returns the appropriate angle (in degrees) of that triangle. asin() returns a value from -90 to 90 or returns zero if fValue is greater than 1 or fValue less than -1.

Version

1.31

See Also

functions:

tan

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author: Charles Feduke, additional contributor(s): Paul Catalano