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Command: asin | Section: 3 | Source: FreeBSD | File: asin.3.gz
ASIN(3) FreeBSD Library Functions Manual ASIN(3)
NAME
asin, asinf, asinl - arc sine functions
LIBRARY
Math Library (libm, -lm)
SYNOPSIS
#include <math.h>
double
asin(double x);
float
asinf(float x);
long double
asinl(long double x);
DESCRIPTION
The asin(), asinf(), and asinl() functions compute the principal value of
the arc sine of x.
RETURN VALUES
These functions return the arc sine in the range [-pi/2, +pi/2] radians.
If:
|x| > 1
asin(x) raises an invalid exception and returns an NaN.
SEE ALSO
acos(3), atan(3), atan2(3), cos(3), cosh(3), fenv(3), math(3), sin(3),
sinh(3), tan(3), tanh(3)
STANDARDS
The asin(), asinf(), and asinl() functions conform to ISO/IEC 9899:1999
("ISO C99").
FreeBSD 14.1-RELEASE-p8 July 31, 2008 FreeBSD 14.1-RELEASE-p8