tan(3)
- NetBSD Manual Pages
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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