Name: Yan Date: 05/06/16-11:44:22 AM Z
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