Dear All,
I seem to be have a problem with the Poly module. Unfortunately, I
can't seem to simplify my expression to get a test case.
Currently, my code is:
diff = value.alpha/value.beta - (c3*c1-c3*c2)/c4 #value.alpha is
extracted from an XML file
print value.alpha, value.beta
Poly(c1*c3 - c2*c3, X, Y, Z) Poly(c4, X, Y, Z)
print diff
Poly((c1*c3 - c2*c3)/c4 + c2*c3/c4 - c1*c3/c4, X, Y, Z) #So this
should by Poly(0, X,Y,Z)
print diff.as_dict()
{(0, 0, 0): (c1*c3 - c2*c3)/c4 + c2*c3/c4 - c1*c3/c4} #That's correct
print diff.as_dict()[(0, 0, 0)]
(c1*c3 - c2*c3)/c4 + c2*c3/c4 - c1*c3/c4#Fine
print diff.as_dict()[(0, 0, 0)].expand() # As expected
0
print diff.as_dict()[(0, 0, 0)].expand() == 0 # Correct
True
print diff.expand() ==0 #Surely True?
False
If I miss out the variable c4 then everything works.
Thanks
Colin
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