Originální popis anglicky:
asin, asinf, asinl - arc sine function
Návod, kniha: Linux Programmer's Manual
#include <math.h>
double asin(double x);
float asinf(float x);
long double asinl(long double x);
Link with -lm.
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.
The
asin() function returns the arc sine in radians and the value is
mathematically defined to be between -PI/2 and PI/2 (inclusive).
- EDOM
- x is out of range.
SVID 3, POSIX, BSD 4.3, ISO 9899. The float and long double variants are C99
requirements.
acos(3),
atan(3),
atan2(3),
cos(3),
sin(3),
tan(3)
