I'm currently learning and using the gtpack package, which is a Mathematica based Group Theory Package. However, I also encountered some problems in use, as follows:
(A). gtpack can't be reloaded repeatedly, even I've wiped the variables/functions and removed all the symbols from the kernel with the following commands, as commented here:
Basically, I mean, if I try to run the following command sequences:
ClearAll[Evaluate[$Context <> "*"]];
Remove[Evaluate[$Context <> "*"]];
The following error will be triggered:
Error: The axis label x already exists!
(B). As we all know, when a user enters a partial string at the beginning of a command, Mathematica can prompt the user for all possible candidate commands. But I can't see this feature for all
commands/functions defined in gtpack package. Considering that there are many custom commands and function names in the package, this is very inconvenient for users. Therefore, I wonder if there is any way to achieve this.
(C). I've noticed that the complex represention of "SU(2)" matrix corresponding to the same O(3) element, for example, R(2Pi/3, (0,0,1)), has the following two different forms, as shown below:
Any hints for these differences and questions will be highly appreciated.
Have you contacted the authors of the package? They will have the most familiarity with it.
I've already contacted the developer, but did not get any reply.