---
layout: doc
title: floats / asin
---
# asin

### NAME

    asin() - return the arcsine of a float

### SYNOPSIS

    float asin( float f );

### DESCRIPTION

    Returns the arcsine of its argument, 'f', measured in radians.

### SEE ALSO

    acos(3), atan(3), cos(3), sin(3), tan(3)

