
TANH(3)                    UNIX Programmer's Manual                    TANH(3)

NNAAMMEE
     ttaannhh - hyperbolic tangent function

SSYYNNOOPPSSIISS
     ##iinncclluuddee <<mmaatthh..hh>>

     _d_o_u_b_l_e
     ttaannhh(_d_o_u_b_l_e _x)

DDEESSCCRRIIPPTTIIOONN
     The ttaannhh() function computes the hyperbolic tangent of _x. For a discus-
     sion of error due to roundoff, see math(3).

RREETTUURRNN VVAALLUUEESS
     The ttaannhh() function returns the hyperbolic tangent value.

SSEEEE AALLSSOO
     acos(3),  asin(3),  atan(3),  atan2(3),  cos(3),  cosh(3),  sin(3),
     sinh(3),  tan(3),  math(3),

SSTTAANNDDAARRDDSS
     The ttaannhh() function conforms to ANSI C3.159-1989 (``ANSI C'').

BSD Experimental                  May 2, 1991                                1







































