Mathematica 14.3 << xAct`xTras` a lot of errors

Nail Khusnutdinov

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Aug 27, 2025, 12:20:55 PMAug 27

to xAct Tensor Computer Algebra

Hi,

I started using today xAct`xTras` in new version of Mathematica 14.3 and I see a lot of errors below. What happens? I'm using the same version of xTras.

Jose

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Aug 27, 2025, 12:22:56 PMAug 27

to xAct Tensor Computer Algebra

Hi,

The new WL version has symbols Commutator and Anticommutator in System, so there is a conflict with the same symbols in xTensor. This requires a change in the xTensor code, which will be added in the upcoming version of xAct. This has happened other times, for example with the symbol Cycles in xPerm.

Cheers,

Jose.

Nail Khusnutdinov

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Aug 27, 2025, 7:09:39 PMAug 27

to xAct Tensor Computer Algebra

Thank you in advance for new version cAct.

среда, 27 августа 2025 г. в 13:22:56 UTC-3, Jose:

Juan Margalef

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Aug 30, 2025, 9:53:44 PMAug 30

to xAct Tensor Computer Algebra

As a temporary solution, one can write:

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

before charging the xAct packages.

Nail Khusnutdinov

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Aug 31, 2025, 12:43:50 PMAug 31

to xAct Tensor Computer Algebra

Thank you Juan,

it works fine.

суббота, 30 августа 2025 г. в 22:53:44 UTC-3, Juan Margalef:

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