COS(3)              Linux Programmer's Manual              COS(3)

NAME
       cos - cosine function

SYNOPSIS
       #include <math.h>

       double cos(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

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

                           June 8, 1993                         1