TAN(3) BSD Programmer's Manual TAN(3)NAME
tan, tanf - tangent function
LIBRARY
libm
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 ra-
dians). 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 ALSOacos(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 C").
MirOS BSD #10-current May 2, 1991 1