tan(3) - NetBSD Manual Pages

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TAN(3)                  NetBSD Library Functions Manual                 TAN(3)


NAME
tan, tanf, tanl -- tangent functions
LIBRARY
Math Library (libm, -lm)
SYNOPSIS
#include <math.h> double tan(double x); float tanf(float x); long double tanl(long double x);
DESCRIPTION
The tan() tanf() and tanl() functions compute the tangent 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 tan() function returns the tangent value.
SEE ALSO
acos(3), asin(3), atan(3), atan2(3), cos(3), cosh(3), math(3), sin(3), sinh(3), tanh(3)
STANDARDS
The tan() function conforms to ANSI X3.159-1989 (``ANSI C89''). NetBSD 10.99 May 2, 1991 NetBSD 10.99
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