# asin(float)

From NWN Lexicon

Gets the arc sine of a value.

## Contents

### 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 |

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