TAN(3)                    386BSD Programmer's Manual                    TAN(3)

NAME
     tan - tangent function

SYNOPSIS
     #include <math.h>

     double
     tan(double x)

DESCRIPTION
     The tan() function computes 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),  sin(3),
     sinh(3),  tanh(3),  math(3),

STANDARDS
     The tan() function conforms to ANSI C3.159-1989 (``ANSI C'').

BSD Experimental                  May 2, 1991                                1