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Command: asin | Section: 3 | Source: OpenBSD | File: asin.3
ASIN(3) FreeBSD Library Functions Manual ASIN(3)
NAME
asin, asinf, asinl - arc sine functions
SYNOPSIS
#include <math.h>
double
asin(double x);
float
asinf(float x);
long double
asinl(long double x);
DESCRIPTION
The asin() function computes the principal value of the arc sine of x in
the range [-pi/2, +pi/2]. The asinf() function is a single precision
version of asin(). The asinl() function is an extended precision version
of asin().
RETURN VALUES
If |x|>1, asin(x), asinf(x) and asinl(x) return NaN and set the global
variable errno to EDOM.
SEE ALSO
acos(3), atan(3), atan2(3), cos(3), cosh(3), sin(3), sinh(3), tan(3),
tanh(3)
FreeBSD 14.1-RELEASE-p8 June 29, 2021 FreeBSD 14.1-RELEASE-p8