cosl(3) -- Linux man page

 

NAME

cos, cosf, cosl - cosine function  

SYNOPSIS

#include <math.h>

double cos(double x);

float cosf(float x);

long double cosl(long double x);
 

DESCRIPTION

The cos() function returns the cosine of x, where x is given in radians.  

RETURN VALUE

The cos() function returns a value between -1 and 1.  

CONFORMING TO

SVID 3, POSIX, BSD 4.3, ISO 9899. The float and the long double variants are C99 requirements.  

SEE ALSO

acos(3), asin(3), atan(3), atan2(3), sin(3), tan(3)