DragonFly On-Line Manual Pages

COS(3)		      DragonFly Library Functions Manual		COS(3)

NAME

cos, cosf, cosl -- cosine functions

SYNOPSIS

#include <math.h> double cos(double x); float cosf(float x); long double cosl(long double x);

DESCRIPTION

The cos() function computes the cosine of x (measured in radians). The cosf() function is a single precision version of cos(). The cosl() func- tion is an extended precision version of cos(). A large magnitude argu- ment may yield a result with little or no significance.

RETURN VALUES

The cos(), cosf() and cosl() functions return the cosine value.

SEE ALSO

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

STANDARDS

The cos() function conforms to ANSI X3.159-1989 (``ANSI C89''). DragonFly 4.3 June 5, 2013 DragonFly 4.3