GNU/Linux |
CentOS 4.8 |
i386 |
cosf(3) |
cos, cosf, cosl − cosine function
#include <math.h>
double cos(double x);
float cosf(float x);
long double cosl(long double x);
The cos() function returns the cosine of x, where x is given in radians.
The cos() function returns a value between −1 and 1.
SVID 3, POSIX, BSD 4.3, ISO 9899. The float and the long double variants are C99 requirements.
acos(3), asin(3), atan(3), atan2(3), sin(3), tan(3)
cosf(3) |