**Next message:**Naser Ahmadiniaz: "Re: Can Feyncalc do calculations in Euclidean Metrics?"**Previous message:**Vladyslav Shtabovenko: "Re: Error in LC[q, k2, p1, p3]^3 or LC[q, k2, p1, p3]^4"**Next in thread:**Vladyslav Shtabovenko: "Re: On the Function FCPrepareFAAmp"**Reply:**Vladyslav Shtabovenko: "Re: On the Function FCPrepareFAAmp"**Messages sorted by:**[ date ] [ thread ] [ subject ] [ author ]**Mail actions:**[ respond to this message ] [ mail a new topic ]

When I test the stable version of FC9.0, I find the function FCPrepareFAAmp dose not always work proporly:

test1 = FAFeynAmpDenominator[

FAPropagatorDenominator[Momentum[P, D], MW Sqrt[FAGaugeXi[W]]],

FAPropagatorDenominator[Momentum[k, D], m]]

test2 = FCPrepareFAAmp[test1]

The expression in test2 still exist "FAGaugeXi", this problem can be fixed by applying this function repeatedly:

test3 = FCPrepareFAAmp[FCPrepareFAAmp[test1]]

Now the test3 is what I want.

I saw your source. I do not know why this problem should appear.

Sun Qingfeng

**Next message:**Naser Ahmadiniaz: "Re: Can Feyncalc do calculations in Euclidean Metrics?"**Previous message:**Vladyslav Shtabovenko: "Re: Error in LC[q, k2, p1, p3]^3 or LC[q, k2, p1, p3]^4"**Next in thread:**Vladyslav Shtabovenko: "Re: On the Function FCPrepareFAAmp"**Reply:**Vladyslav Shtabovenko: "Re: On the Function FCPrepareFAAmp"**Messages sorted by:**[ date ] [ thread ] [ subject ] [ author ]**Mail actions:**[ respond to this message ] [ mail a new topic ]

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