plugin_math

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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