SINH(3M) UNIX Programmer's Manual SINH(3M) NNAAMMEE sinh, cosh, tanh - hyperbolic functions SSYYNNOOPPSSIISS ##iinncclluuddee <<mmaatthh..hh>> ddoouubbllee ssiinnhh((xx)) ddoouubbllee xx;; ddoouubbllee ccoosshh((xx)) ddoouubbllee xx;; ddoouubbllee ttaannhh((xx)) ddoouubbllee xx;; DDEESSCCRRIIPPTTIIOONN These functions compute the designated hyperbolic functions for real arguments. EERRRROORR ((dduuee ttoo RRoouunnddooffff eettcc..)) Below 2.4 _u_l_ps; an _u_l_p is one _Unit in the _Last _Place. DDIIAAGGNNOOSSTTIICCSS Sinh and cosh return the reserved operand on a VAX if the correct value would overflow. SSEEEE AALLSSOO math(3M), infnan(3M) AAUUTTHHOORR W. Kahan, Kwok-Choi Ng Printed 7/9/88 May 12, 1986 1