Hi,
1) you seem to use FeynCalc 8.2. Is there any reason why you can't
upgrade to 9.x?
<https://github.com/FeynCalc/feyncalc/wiki/Installation>
2) If there are still issues, please provide a minimal working example
that reproduces the problem.
Cheers,
Vladyslav
Am 06.05.2016 um 11:44 schrieb Yan:
> I am now using Tarcer in feyncal to calculate 2-loop integrals on Macos. When I use TarcerRecurse[ ], I get some errors:
>
> "Pattern HighEnergyPhysics`Tarcer`Private`PP_ appears on the \
> right-hand side of rule Subscript[\[CapitalDelta], \
> 246]->(HighEnergyPhysics`Tarcer`Private`m2^2-2\ \
> HighEnergyPhysics`Tarcer`Private`m2\ \
> HighEnergyPhysics`Tarcer`Private`m4+HighEnergyPhysics`Tarcer`Private`\
> m4^2-HighEnergyPhysics`Tarcer`Private`PP_)\ \
> (HighEnergyPhysics`Tarcer`Private`m2^2+2\ \
> HighEnergyPhysics`Tarcer`Private`m2\ \
> HighEnergyPhysics`Tarcer`Private`m4+HighEnergyPhysics`Tarcer`Private`\
> m4^2-HighEnergyPhysics`Tarcer`Private`PP_). “
>
> Pattern::patvar: First element in pattern Pattern[0,_] is not a valid pattern name. >>
> Pattern::patvar: First element in pattern Pattern[P^2,_] is not a valid pattern name. >>
> etc.
>
> Could you please tell me what does that mean?
> Those errors didn't appear when I compile Tarcer in a linux machine to get *.mx file and use it in mac os.
>
> And I also get some function with arguments like
>
> {HighEnergyPhysics`Tarcer`Private`n1, HighEnergyPhysics`Tarcer`Private`m1}{HighEnergyPhysics`Tarcer`Private`n2,HighEnergyPhysics`Tarcer`Private`m2}
>
> What is n1,n2,m1,m2? I didn’t find the explanation in Tarcer documentation.
>
> Thanks!
> Best regards,
> Yan
>
This archive was generated by hypermail 2b29 : 09/04/20-12:55:05 AM Z CEST