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 [-/2, +/2] radians. If:
|x| > 1
asin(x) raises an invalid exception and returns an .
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”).