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asin
Langue: en
Version: 2002-07-25 (mandriva - 22/10/07)
Section: 3 (Bibliothèques de fonctions)
NAME
asin, asinf, asinl - arc sine functionSYNOPSIS
#include <math.h> double asin(double x);
float asinf(float x);
long double asinl(long double x);
Link with -lm.
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
SVr4, POSIX.1-2001, 4.3BSD, C89, C99. The float and long double variants are C99 requirements.SEE ALSO
acos(3), casin(3), atan(3), atan2(3), cos(3), sin(3), tan(3)Contenus ©2006-2024 Benjamin Poulain
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