COS(3)			   Linux Programmers Manual		       COS(3)



NAME
       cos, cosf, cosl - cosine function

SYNOPSIS
       #include 

       double cos(double x);
       float cosf(float x);
       long double cosl(long double x);

       Link with -lm.

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

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

CONFORMING TO
       SVr4, 4.3BSD, C99.  The float and long double variants are C99 require
       ments.

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

COLOPHON
       This  page  is  part of release 3.05 of the Linux man-pages project.  A
       description of the project, and information about reporting  bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.



				  2002-07-27				COS(3)