======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   ====

* [[arduino:trigonometry:Sin]]
* [[arduino:trigonometry:Tan]]
* [[arduino:data_types:float|float]]
* [[arduino:data_types:double|double]]


Source: arduino.cc