cos(3) - NetBSD Manual Pages

COS(3)                  NetBSD Library Functions Manual                 COS(3)


NAME
cos, cosf -- cosine function
LIBRARY
Math Library (libm, -lm)
SYNOPSIS
#include <math.h> double cos(double x); float cosf(float x);
DESCRIPTION
The cos() and cosf() functions compute the cosine of x (measured in radi- ans). 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() function returns 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 ANSI X3.159-1989 (``ANSI C89''). NetBSD 5.2.2 May 2, 1991 NetBSD 5.2.2

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