1*61309Sbostic.\" Copyright (c) 1991, 1993 2*61309Sbostic.\" The Regents of the University of California. All rights reserved. 348923Scael.\" 448923Scael.\" %sccs.include.redist.man% 548923Scael.\" 6*61309Sbostic.\" @(#)tan.3 8.1 (Berkeley) 06/04/93 748923Scael.\" 848923Scael.Dd 948923Scael.Dt TAN 3 1048923Scael.Os 1148923Scael.Sh NAME 1248923Scael.Nm tan 1348923Scael.Nd tangent function 1448923Scael.Sh SYNOPSIS 1548923Scael.Fd #include <math.h> 1648923Scael.Ft double 1748923Scael.Fn tan "double x" 1848923Scael.Sh DESCRIPTION 1948923ScaelThe 2048923Scael.Fn tan 2148923Scaelfunction computes the tangent of 2248923Scael.Fa x 2348923Scael(measured in radians). 2448923ScaelA large magnitude argument may yield a result 2548923Scaelwith little or no significance. 2648923ScaelFor a discussion of error due to roundoff, see 2748923Scael.Xr math 3 . 2848923Scael.Sh RETURN VALUES 2948923ScaelThe 3048923Scael.Fn tan 3148923Scaelfunction returns the tangent value. 3248923Scael.Sh SEE ALSO 3348923Scael.Xr acos 3 , 3448923Scael.Xr asin 3 , 3548923Scael.Xr atan 3 , 3648923Scael.Xr atan2 3 , 3748923Scael.Xr cos 3 , 3848923Scael.Xr cosh 3 , 3948923Scael.Xr sin 3 , 4048923Scael.Xr sinh 3 , 4148923Scael.Xr tanh 3 , 4248923Scael.Xr math 3 , 4348923Scael.Sh STANDARDS 4448923ScaelThe 4548923Scael.Fn tan 4648923Scaelfunction conforms to 4748923Scael.St -ansiC . 48