ADC Home > Reference Library > Reference > Mac OS X > Mac OS X Man Pages

 

This document is a Mac OS X manual page. Manual pages are a command-line technology for providing documentation. You can view these manual pages locally using the man(1) command. These manual pages come from many different sources, and thus, have a variety of writing styles.

For more information about the manual page format, see the manual page for manpages(5).



TAN(3)                   BSD Library Functions Manual                   TAN(3)

NAME
     tan -- tangent function

SYNOPSIS
     #include <math.h>

     double
     tan(double x);

     long double
     tanl(long double x);

     float
     tanf(float x);

DESCRIPTION
     The tan() function computes the tangent of x (measured in radians).

SPECIAL VALUES
     tan(+-0) returns +-0.

     tan(+-infinity) returns a NaN and raises the "invalid" floating-point exception.

SEE ALSO
     acos(3), asin(3), atan(3), atan2(3), cos(3), cosh(3), sin(3), sinh(3), tanh(3), math(3)

STANDARDS
     The tan() function conforms to ISO/IEC 9899:1999(E).

BSD                            November 20, 2002                           BSD

Did this document help you?
Yes: Tell us what works for you.
It’s good, but: Report typos, inaccuracies, and so forth.
It wasn’t helpful: Tell us what would have helped.