COS(3) BSD Programmer's Manual COS(3)
cos, cosf - cosine function
#include <math.h> double cos(double x); float cosf(float x);
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).
The cos() function returns the cosine value.
acos(3), asin(3), atan(3), atan2(3), cosh(3), math(3), sin(3), sinh(3), tan(3), tanh(3)
The cos() function conforms to ANSI X3.159-1989 ("ANSI C"). MirOS BSD #10-current May 2, 1991 1
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