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
          argument.  returns the double-precision hyperbolic tangent
          of its double precision argument.  The generic form may be
          used to return a double-precision value given a double-
          precision argument.

     SEE ALSO
          sinh(3M).


































     Page 1                                        (last mod. 1/14/87)