asin
Hurricane Electric Internet Services
NAME
asin - arc sine function
SYNOPSIS
#include <math.h>
double asin(double x);
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
SVID 3, POSIX, BSD 4.3, ISO 9899
SEE ALSO
acos(3), atan(3), atan2(3), cos(3), sin(3), tan(3)
Hurricane Electric Internet Services
Copyright (C) 1998
Hurricane Electric.
All Rights Reserved.