Name: Vladyslav Shtabovenko Date: 06/15/15-03:52:19 PM Z


Hi,

which version exactly did you install?

Both on MMA9 and MMA10 I have

«FeynCalc`

Contract[(FV[p1, mu2] - FV[pJ, mu2])*FV[k2, mu1]*FV[pJ, af]]
% // StandardForm

returning

Pair[LorentzIndex[af], Momentum[pJ]] Pair[LorentzIndex[mu1],
   Momentum[k2]] Pair[LorentzIndex[mu2], Momentum[p1]] -
 Pair[LorentzIndex[af], Momentum[pJ]] Pair[LorentzIndex[mu1],
   Momentum[k2]] Pair[LorentzIndex[mu2], Momentum[pJ]]

Cheers,
Vladyslav

Am 15.06.2015 um 10:43 schrieb Mcqueen:
> Hi,
>
> I install the new version, and it is still exit.
> Cheers.
>