ASIN(3) Linux Programmers Manual ASIN(3)
NAME
asin, asinf, asinl  arc sine function
SYNOPSIS
#include
double asin(double x);
float asinf(float x);
long double asinl(long double x);
Link with lm.
DESCRIPTION
The asin() function calculates the arc sine of x; that is the value
whose sine is x. If x falls outside the range 1 to 1, asin() fails
and errno is set.
RETURN VALUE
The asin() function returns the arc sine in radians and the value is
mathematically defined to be between PI/2 and PI/2 (inclusive).
ERRORS
EDOM x is out of range.
CONFORMING TO
SVr4, POSIX.12001, 4.3BSD, C89, C99. The float and long double vari
ants are C99 requirements.
SEE ALSO
acos(3), atan(3), atan2(3), casin(3), cos(3), sin(3), tan(3)
COLOPHON
This page is part of release 3.05 of the Linux manpages project. A
description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/manpages/.
20020725 ASIN(3)
