.. highlightlang:: us

.. index:: acot

.. _acot:

acot
====

.. us.tag  acot ENGLISH math-trigo

:ref:`acot` calculates the arccotangent.

.. function::  r = acot(m)

.. us.return

**Return Value**

*r* is the arccotangent of *m*.

.. us.params

**Parameters**

.. uparam:: m

   *m* is a real or complex matrix.

.. us.comment

**Comment**

Algorithm: -(1./2i) .* log ((1i .* x + 1)./(1i .* x - 1)).

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

:sub:`id-1273532`