How to install “GroupTheory” package in Mathematica? I am using Mathematica v12.0, and I try to install “GroupTheory” via “Palettes –> Install Palette …”. But it does not work. Thank you very much.

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Qilin GUO Selected answer as best

To install GTPack you would need to choose “Application” as “Type of Item to Install”.

- Download and unzip GTPack
- Open Mathematica. Go to File -> Install…
- Type of Item to Install: “Application”
- Source: “From Directory”; Pick the downloaded GTPack Directory in the file explorer

Done!

(An alternative manual way of installing GTPack is explained here: https://gtpack.org/tutorials/install-gtpack/)

Qilin GUO Posted new comment

Brilliant! Thank you very much!

Now I find the correct way to install GTpack, see “Appendix D: Technical Remarks on GTPack” of the book “Group Theory in Solid State Physics and Photonics: Problem Solving with Mathematica” by Wolfram Hergert and R. Matthias Geilhufe.

If one want to remove a undesirable palettes, just run the following command in Mathematica to open the path of the palettes:

SystemOpen[

FileNameJoin[{$UserBaseDirectory, “SystemFiles”, “FrontEnd”,

“Palettes”}]]