> For the complete documentation index, see [llms.txt](https://help.auxalia.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.auxalia.com/plant-tools/plantexpresstools/how-to-use/calculations/additional-functions.md).

# Additional Functions

This chapter lists and explains the additional PlantTools functions available in the expression editor.

Table of Content:

* [PTCreateGUID](/plant-tools/plantexpresstools/how-to-use/calculations/additional-functions/ptcreateguid.md)
* [PTFormat & PTFormatDouble](/plant-tools/plantexpresstools/how-to-use/calculations/additional-functions/ptformat-ptformatdouble.md)
* [PTGetAllScriptParameters & PTGetScriptParameter](/plant-tools/plantexpresstools/how-to-use/calculations/additional-functions/ptgetallscriptparameters-ptgetscriptparameter.md)
* [PTLongestString](/plant-tools/plantexpresstools/how-to-use/calculations/additional-functions/ptlongeststring.md)
* [PTSwitchCase & PTSwitchCondition](/plant-tools/plantexpresstools/how-to-use/calculations/additional-functions/ptswitchcase-ptswitchcondition.md)