TANH (real-number)

  Class:  Elemental function - Generic

  Returns the hyperbolic tangent of the argument.

  +------+---------+----------+------------+-------------+
  | Args | Generic | Specific |  Argument  | Result Type |
  +------+---------+----------+------------+-------------+
  |  1   |  TANH   | TANH     | REAL*4     | REAL*4      |
  |      |         | DTANH    | REAL*8     | REAL*8      |
  |      |         | QTANH    | REAL*16    | REAL*16     |
  +------+---------+----------+------------+-------------+