Section: Linux Programmer's Manual (3) Updated: 2010-09-20 Local index
asin, asinf, asinl - arc sine function
double asin(double x);
float asinf(float x);
long double asinl(long double x);
Link with -lm.
Feature Test Macro Requirements for glibc (see
_BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE >= 600 || _ISOC99_SOURCE ||
_POSIX_C_SOURCE >= 200112L;
function calculates the principal value of the arc sine of x;
that is the value whose sine is x.
On success, these functions return the principal value of the arc sine of
in radians; the return value is in the range [-pi/2, pi/2].
is a NaN, a NaN is returned.
is +0 (-0),
+0 (-0) is returned.
is outside the range [-1, 1],
a domain error occurs,
and a NaN is returned.
for information on how to determine whether an error has occurred
when calling these functions.
The following errors can occur:
- Domain error: x is outside the range [-1, 1]
is set to
An invalid floating-point exception
The variant returning
also conforms to
SVr4, 4.3BSD, C89.
This page is part of release 3.27 of the Linux
A description of the project,
and information about reporting bugs,
can be found at
- RETURN VALUE
- CONFORMING TO
- SEE ALSO
This document was created by
using the manual pages.
Time: 21:41:57 GMT, April 16, 2011