Name: Rolf Mertig Date: 04/28/04-10:04:21 PM Z


Jon Palmer wrote:

>Frederik,
>
>I came to the same conclusion and realized it was not just CreateFCAmp that
>didn’t work but all of PHI. Despite explicitly setting $LoadPhi=True it
>wasn’t loading. I tracked it down to the fact that the FCConfig.m for the
>beta release set’s it back to False. Sorry to waste your time on something
>so simple.
>
>I will continue to test the beta and I’ll let you know how it goes.
>
>Many thanks
>Jon Palmer
>
>P.S. I notice that the outputs of some of the functions now come in terms of
>“DiracGamma[Momentum[p]]” rather than “DiracSlash[p]” they’re obviously the
>same thing but is there a reason that its now done that way?
>
It is more consistent to have everything either in FeynCalcInternal or
FeynCalcExternal format.

So if you want to take coefficients and alike I would use FCE or FCI before.

Rolf