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Reference for Wiring version 1.0 Build 0100+ If you have a previous version, use the reference included with your software. If see any errors or have any comments, let us know.

Name |

### acos()

Description | Calculates the arc cosine of x. The acos(x) function expects the values of the x parameter to be provided between -1 and 1. Values are returned in the range -PI/2, PI/2.
Syntax |
    acos(x)
Parameters |

x | float: a value between -1 and 1

Returns | the arc cosine of x(a value from -PI/2, PI/2) of the specified parameter x
Usage | Web & Application
Related | acos() asin() atan() atan2() cos()
cosh()
hypot()
sin()
sinh()
tan()
tanh()
radians()
degrees()

Updated on July 07, 2011 11:07:46pm PDT