.. highlightlang:: us

.. index:: tan

.. _tan:

tan
===

.. us.tag  tan ENGLISH math-trigo

:ref:`tan` returns the tangent of its parameter.

.. function::  r = tan(m)

.. us.return

**Return Value**

*r* is the tangent of *m*.

.. us.params

**Parameters**

.. uparam:: m

   *m* is a real or complex matrix.

.. us.comment

**Comment**

Algorithm: sin(x) ./ cos(x).

.. seealso::
   :ref:`atan`

:sub:`id-929635`