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.. _arduino-cos:

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

Calculate the cosine of an angle (in radians).

Library Documentation
---------------------

.. doxygenfunction:: cos


Arduino Compatibility
---------------------

The Maple ``cos()`` implementation is compatible with Arduino.

Note that the Maple implementation comes from `newlib
<http://sourceware.org/newlib/>`_\ , while Arduino's is that of
`avr-libc <http://avr-libc.nongnu.org/>`_\ .

See also
--------


-  :ref:`sin() <arduino-sin>`
-  :ref:`tan() <arduino-tan>`
-  :ref:`float <arduino-float>`
-  :ref:`double <arduino-double>`