Hi Cristian,
the mistake seems to be in
SPD[p, p] == pp;
which should be
SPD[p, p] = pp;
The first code is just an equation (i.e. does nothing),
while the second assigns SPD[p,p] the value pp.
Cheers,
Vladyslav
Am 26.11.19 um 23:53 schrieb Cristian Sierra:
> Hello Vladyslav,
>
> Thank you very much for your answer. I did load the add-on exactly as in your example on arXiv and I still get the same issue. I was using FeynCalc 9.2 when I found this problem so I decided to try with the 9.3 version but the problem remained. You can find the Mathematica code I am using in the following GitHub link:
>
> https://github.com/cristiansierraf/FeynHelpers-test.git
>
> There are two files, the one I used for the installation and another one with the example itself. I restarted Mathematica as indicated.
>
> Apparently PaXEvaluate works perfectly while PaXSeries does not.
>
> Thank you again four your help,
>
> Cristian
>
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