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man COS (3) | C library functions | Unix Manual Pages | :man▋
NAME
cos, cosf - cosine functions
CONTENTS
Library
Synopsis
Description
Return Values
See Also
Standards
LIBRARY
.Lb libm
SYNOPSIS
.In 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
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