Warning messages loading xTensor after Mathematica update

[mariemm...@gmail.com]

Hello,

I recently updated my mathematica to the latest version 14.3 and now have these warning messages when loading xTensor. It seems it's all related to the Commutator and Anticommutator function. Is this a buy related to the new update? should I revert to older version?

Thanks for any help with this..

-Mariem Magdy

[Thomas Bäckdahl]

Hi!

This is a name conflict between xAct and new functions in Mathematica 14.3. We should fix this with a new release of xAct, but that has not happened yet.

In the mean time you can add the following two lines as first lines in your notebook:

xAct`xTensor`Commutator;
xAct`xTensor`Anticommutator;

This should fix the issue.

Regards
Thomas

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[mariemm...@gmail.com]

Hi Thomas,

Thanks. This fixed it. 

Best

-Mariem