ASIN - arcsin function.

(ANSI Standard)

Usage:

#include <math.h>
y = asin( x );

Where:

double x, y;
 

Description:

"asin" returns the arcsin of its argument (in the range -pi/2 to pi/2). If the argument is outside the range [-1,1], "asin" returns zero and sets "errno" to EDOM.

See Also:

expl c lib errno

Copyright © 1996, Thinkage Ltd.