* Added missing trigonometrics filter operators
This PR adds support to trigonometry operators, allowing to create spider graphs and other geometric shapes with filters.
* Adds the missing trigonometric filter operators
This PR adds support to the missing trigonometric filter operators (cos, sin, tan, acos, asin, atan, atan2), allowing to create spider graphs, [pie charts, donut charts, polar charts](https://ffoodd.github.io/chaarts/pie-charts.html) and other geometric shapes with filters, which was previously not possible without add-ons.
Example :
`[[2]cos[]] = -0.4161468365471424`
See also this radar chart made in wikitext by @saqimtiaz using the new trigonometric operators :
https://saqimtiaz.github.io/sq-tw/temp/radar-chart-demo.html
* Add documentation for the Trigonometric Operators
Accompanies code changes #6127
* Fix formatting of atan2 Operator.tid
Removed two empty lines at the end of the tiddler
* Add examples for the trigonometric operators
Accompanies code changes Jermolene#6127
* Fix version in the doc for trigonometric operators
This PR fix the content of the documentation tiddlers regarding trigonometric operators (#6131).
<<.from-version "5.1.20">> was changed to <<.from-version "5.1.21">>
* Fix formatting of atan2 Operator.tid
Removed two empty lines at the end of the tiddler
* Add missing parameter to atan2 operator
The atan2 operator needs two parameters (Binary Mathematics Operators), this PR adds the second one that was missing.
See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/atan2 for more technical info on the atan2 function.
* Added missing trigonometrics filter operators
This PR adds support to trigonometry operators, allowing to create spider graphs and other geometric shapes with filters.
* Adds the missing trigonometric filter operators
This PR adds support to the missing trigonometric filter operators (cos, sin, tan, acos, asin, atan, atan2), allowing to create spider graphs, [pie charts, donut charts, polar charts](https://ffoodd.github.io/chaarts/pie-charts.html) and other geometric shapes with filters, which was previously not possible without add-ons.
Example :
`[[2]cos[]] = -0.4161468365471424`
See also this radar chart made in wikitext by @saqimtiaz using the new trigonometric operators :
https://saqimtiaz.github.io/sq-tw/temp/radar-chart-demo.html
There are other ways we could add maths to TW5 (including @EvanBalster's awesome https://github.com/EvanBalster/TiddlyWikiFormula) but the approach here has the merit of simplicity because it reuses the existing filter evaluation mechanism. That means that it's not ordinary "2+2" maths, it's a unique list processing language...
Docs to come
Fixes#254
