tanh(3F)                                                 tanh(3F)



NAME
     tanh, dtanh - Fortran hyperbolic tangent intrinsic function

SYNOPSIS
     real r1, r2
     double precision dp1, dp2

     r2 = tanh(r1)

     dp2 = dtanh(dp1)
     dp2 = tanh(dp1)

DESCRIPTION
     tanh returns the real hyperbolic tangent of its real argu-
     ment.  dtanh returns the double-precision hyperbolic tangent
     of its double-precision argument.  The generic form tanh may
     be used to return a double-precision value given a double-
     precision argument.

SEE ALSO
     sinh(3M).


































Page 1                        CX/UX Hf77 Fortran Reference Manual