lcd4linux:plugin_math
Inhaltsverzeichnis
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.
Constants
The Plugin defines the following variables:
| Pi | 3.14159…. |
| e | 2.718… |
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 |
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' |
lcd4linux/plugin_math.txt · Zuletzt geändert: 2022/02/15 20:09 von 127.0.0.1