.. _arduino-cos:

cos(rad)
========

Description
-----------

Calculates the cos of an angle (in radians). The result will be
between -1 and 1.

Parameters
----------

rad: the angle in radians (*float*)



Returns
-------

The cos of the angle ("double")



See also
--------


-  `sin <http://arduino.cc/en/Reference/Sin>`_\ ()
-  `tan <http://arduino.cc/en/Reference/Tan>`_\ ()
-  `float <http://arduino.cc/en/Reference/Float>`_
-  `double <http://arduino.cc/en/Reference/Double>`_