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
