Status: Accepted
Owner: smichr
Labels: Type-Defect Priority-Medium
New issue 2067 by smichr: expand complex does expand (x+I*x)/(1+I) quotient
http://code.google.com/p/sympy/issues/detail?id=2067
The expansion of the quotient is less than optimal. Although the quotient
no longer causes an error, it doesn't give the desired result:
(x+I*x)/(1+I)
(x + I*x)/(1 + I)
_.expand(complex=1)
(1/2 - I/2)*(I*(I*im(x) + re(x)) + I*im(x) + re(x))
As pointed out in 1985, the answer should be re(x) + I*im(x).
Many expansion issues (including this one) are fixed by the 1725 commit in
t2 (github/smichr).
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