Name: (email_not_shown)
Date: 12/08/04-11:54:15 PM Z

Dear Mlody,
sorry for the late answer, but I somehow did not get the
feyncalc-Forum messages automatically anymore and just
saw your bug-report today.

Yes, in 5.1beta there is a problem when calling Tr on
unsimplified expressions.

We will try to fix the bugs still this month, but in the
meantime please use, e.g.,


and then call tr instead of Tr or TR on traces.

Of course you can do other simplifications (like DiracSimplify , or even DiracSimplify2 or alike).

Sorry for the trouble,

Rolf Mertig

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