.. highlightlang:: us

.. _log:

log
===

.. index:: log

.. us.tag  log ENGLISH  math-base

:ref:`log` returns the natural logarithm
of its parameter.

.. function::  r = log(m)

.. us.return

**Return Value**

*r* is the natural logarithm of *m*.

.. us.params

**Parameters**

.. uparam:: m

   *m* is a real or complex matrix.

.. seealso::
   :ref:`overview-mathematic`,
   :ref:`log10`

:sub:`id-1531058`