Name: Shaowu zhang (email_not_shown)
Date: 07/03/16-01:44:54 PM Z

I modified according to your operating. the result is still the same result--1/0.
Please help me see how to solve the problem below, please.Thanks.

here were some issues with ApartFF in the stable
version that were fixed in the development version some time
since those fixes also involved changing the default
behavior of ApartFF (now scaleless integrals are set to zero
in D-dims) they didn't make it into the stable version.
With the development version your code works returning
-(FAD[{q1, m}, -p + q1, {-k - 2 p + q1, m}]/(2 (m^2 - SPD[p, p]))) -
 FAD[{q1, m}, {k + q1, m}, -p + q1]/(2 (m^2 - SPD[p, p])) +
 FAD[{q1, m}, {k + q1, m}, {-2 p + q1, m}]/(m^2 - SPD[p, p])
Am 01.07.2016 um 15:44 schrieb Shaowu zhang:
> Hi
> Could you help me check the code as follows?
> ScalarProduct[p,p]=m^2
> ScalarProduct[k,k]=0
> top=FAD[{q1, m}, {q1 - p}, {q1 - 2 p, m}, {q1 - k - 2 p, m}] // FCI
> ApartFF[top,q1]
> Next,the result is "Infinite expression 1/0 encountered."
> I do not understand the wrong result.

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