COS(3)		       FreeBSD Library Functions Manual 		COS(3)

NAME
     cos, cosf -- cosine functions

LIBRARY
     Math Library (libm, -lm)

SYNOPSIS
     #include <math.h>

     double
     cos(double x);

     float
     cosf(float x);

DESCRIPTION
     The cos() and the cosf() functions compute the cosine of x (measured in
     radians).	A large magnitude argument may yield a result with little or
     no significance.  For a discussion of error due to roundoff, see math(3).

RETURN VALUES
     The cos() and the cosf() functions return the cosine value.

SEE ALSO
     acos(3), asin(3), atan(3), atan2(3), cosh(3), math(3), sin(3), sinh(3),
     tan(3), tanh(3)

STANDARDS
     The cos() function conforms to ISO/IEC 9899:1990 (``ISO C90'').

FreeBSD 7.2			  May 2, 1991			   FreeBSD 7.2

NAME - LIBRARY - SYNOPSIS - DESCRIPTION - RETURN VALUES - SEE ALSO - 
STANDARDS -