ACOS(3) | Library Functions Manual | ACOS(3) |
acos
, acosf
,
acosl
—
#include <math.h>
double
acos
(double
x);
float
acosf
(float
x);
long double
acosl
(long
double x);
acos
(), acosf
(), and
acosl
() functions compute the principal value of the
arc cosine of x in the range [0, pi].
acos
(x),
acosf
(x), and
acosl
(x) set the global variable
errno to EDOM.
acos
() function conforms to ISO/IEC
9899:1999 (“ISO C99”).
January 29, 2013 | NetBSD 9.2 |