.. highlightlang:: us

.. index:: tanh

.. _tanh:

tanh
====

.. us.tag  tanh ENGLISH math-trigo

:ref:`tanh`  returns the hyperbolic tangent of its parameter.

.. function::  r = tanh(m)

.. us.return

**Return Value**

*r* is the hyperbolic tangent of *m*.

.. us.params

**Parameters**

.. uparam:: m

   *m* is a real or complex matrix.

.. us.comment

**Comment**

Algorithm:  The calculation is reached using this formula:
sinh(x) ./ cosh(x).

.. seealso::
   :ref:`overview-mathematic`,
   :ref:`atanh`

:sub:`id-438090`