cosf man page on FreeBSD

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COS(3)			 BSD Library Functions Manual			COS(3)

NAME
     cos, cosf, cosl — cosine functions

LIBRARY
     Math Library (libm, -lm)

SYNOPSIS
     #include <math.h>

     double
     cos(double x);

     float
     cosf(float x);

     long double
     cosl(long double x);

DESCRIPTION
     The cos(), cosf(), and cosl() 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(), cosf(), and cosl() 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
     These functions conform to ISO/IEC 9899:1999 (“ISO C99”).

BSD			       January 24, 2008				   BSD
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