====== Mathematical functions plugin ======

This plugin provides some basic mathematical functions. This plugin will always be linked statically into LCD4Linux, and therefore does not follow the //plugin_name::function// scheme.

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===== Constants =====

The Plugin defines the following variables:

|Pi|3.14159....|
|e|2.718...|

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===== Functions: =====

|sqrt(x)|square root|
|exp(x)|base-e exponential function|
|ln(x)|natural logarithmic|
|log(x)|base-10 logarithmic|
|sin(x)|sine function|
|cos(x)|cosine function|
|tan(x)|tangent function|
|ceil(x)|round up to next integer|
|floor(x)|round down to next integer|
|min(a,b)|minimum of a and b|
|max(a,b)|maximum of a and b|
|decode(index,...)|return parameter specified by index|

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===== decode() examples =====

|**expression**|**result**|
|decode(-1,'a','b')|!''|
|decode(0,'a','b')|'a'|
|decode(1,'a','b')|'b'|
|decode(2,'a','b')|!''|
|decode(3,'a','b','c','d','e','f')|'d'|

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