asin man page on Manjaro

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```ASIN(3)			   Linux Programmer's Manual		       ASIN(3)

NAME
asin, asinf, asinl - arc sine function

SYNOPSIS
#include <math.h>

double asin(double x);
float asinf(float x);
long double asinl(long double x);

Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

asinf(), asinl():
_BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE >= 600 ||
_ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L;
or cc -std=c99

DESCRIPTION
The asin() function calculates the principal value of the arc  sine  of
x; that is the value whose sine is x.

RETURN VALUE
On  success, these functions return the principal value of the arc sine
of x in radians; the return value is in the range [-pi/2, pi/2].

If x is a NaN, a NaN is returned.

If x is +0 (-0), +0 (-0) is returned.

If x is outside the range [-1, 1], a domain error occurs, and a NaN  is
returned.

ERRORS
See  math_error(7) 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]
errno is set  to	EDOM.	An  invalid  floating-point  exception
(FE_INVALID) is raised.

CONFORMING TO
C99, POSIX.1-2001.  The variant returning double also conforms to SVr4,
4.3BSD, C89.

acos(3), atan(3), atan2(3), casin(3), cos(3), sin(3), tan(3)

COLOPHON
This page is part of release 3.65 of the Linux  man-pages  project.   A
description  of	the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.

2010-09-20			       ASIN(3)
```
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