TAN(3) BSD Library Functions Manual TAN(3)
NAME
tan, tanf -- tangent function
LIBRARY
Math Library (libm, -lm)
SYNOPSIS
#include <math.h>
double
tan(double x);
float
tanf(float x);
DESCRIPTION
The tan() and tanf() 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'').
BSD
May 2, 1991 BSD
