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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), ccos(3), cosh(3), math(3), sin(3),
     sinh(3), tan(3), tanh(3)

STANDARDS
     These functions conform to	ISO/IEC	9899:1999 ("ISO	C99").

HISTORY
     The cos() function	first appeared in Version 1 AT&T UNIX.

BSD				 April 1, 2020				   BSD
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | SEE ALSO | STANDARDS | HISTORY

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