[GiNaC-list] 回复: issue about series involving positive symbol

[Feng Feng]

I got a more compact case for this issue, by changing the in1 and in2 to

ex in1 = reader("t^2/(3*m^2-t*m^2)/2");
ex in2 = reader("-(m^(-2)*(-3+t)^(-1)*t^2/2)");

sometimes we get the output:
in1-in2 = 0
diff = 0
while, for some other times, we get the output:
in1-in2 = 0
diff = 96*log(1/48)

it seems that the sign of the log term has been changed.

Best regards!
Feng
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