2
$\begingroup$

I started using xAct to perform some computations. I copied the xAct folder in the /.Mathematica/Applications folder in my Ubuntu system. I loaded it and created the manifold and defined the metric. The output however is not coming right on using the ordinary derivative PD[].

PD[-a][PD[-b][T[c, d, -e]]]

Out: $PD(-a)(PD(-b)(T(c,d,-e)))$

Does anyone know how to resolve this? Also whenever I click the xAct option in the Addons page of Mathematica, the screen freezes. I am using Mathematica 10.

Improve this question
$\endgroup$
2
  • $\begingroup$ IN: PD[-a]@ PD[-b]@T[c, d, -e] is the correct command. $\endgroup$
    – SUMAN KUNDU
    Commented Oct 31, 2019 at 6:24
  • $\begingroup$ @SUMANKUNDU isn't it the same command? $\endgroup$
    – Kuba
    Commented Oct 31, 2019 at 7:01

1 Answer 1

Reset to default
1
$\begingroup$

Format --> Option Inspector..." --> set "show option values" to "Global Preferences" --> type "OutputToStandardForm" in the search box and set the option setting to "True" ---> click on "Apply".

I believe this should work.

If the problem remains and you have Mathematica 11 then you can also try : Edit-->Preferences-->Evaluation and set the "Format type of new output cells" to "StandardForm"

Improve this answer
$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.