.. highlightlang:: us

.. _cosh:

cosh
====

.. index:: cosh

.. us.tag  cosh ENGLISH math-trigo

:ref:`cosh` returns the hyperbolic cosine of its parameter.

.. function::  r = cosh(m)

.. us.return

**Return Value**

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

.. us.params

**Parameters**

.. uparam:: m

   *m* is a real or complex matrix.

.. us.comment

**Comment**

Algorithm: (exp(x) + exp(-x)) .* 0.5.

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

:sub:`id-1678619`