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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 |