SourceForge has been redesigned. Learn more.
Close

#1761 itensor: Error during contract action

closed
5
2009-11-21
2009-09-10
Anonymous
No

Maxima get a error for contract below problem:

imetric(g);
g([- A, - B], []) g([A, B], [], X) + g([- A, - B], [], X) g([A, B], [])
contract(rename(%))
%1 %2
g g g has improper indices
%2 %2 ,X %1 %1
-- an error. To debug this try debugmode(true);

correct return is derivation of kdelta, alse 0!

Discussion

  • Viktor Toth

    Viktor Toth - 2009-10-31

    What version of Maxima are you using? I cannot reproduce it using current versions. Contract will not simplify this expression, but it doesn't bungle up the indices either.

     
  • Viktor Toth

    Viktor Toth - 2009-10-31
    • assigned_to: nobody --> vttoth
     
  • Viktor Toth

    Viktor Toth - 2009-11-06
    • status: open --> pending
     
  • SourceForge Robot

    This Tracker item was closed automatically by the system. It was
    previously set to a Pending status, and the original submitter
    did not respond within 14 days (the time period specified by
    the administrator of this Tracker).

     
  • SourceForge Robot

    • status: pending --> closed
     

Log in to post a comment.