Updates:
Status: Started
Labels: Polynomial Simplify Milestone-Release0.7.0 NeedsReview
Comment #3 on issue 573 by mattpap: Composition of together() and apart()
should give identity
http://code.google.com/p/sympy/issues/detail?id=573
Commit 3523d6399cd6a09544b95962db21b8b0873b043a in polys11 fixes this issue:
In [1]: apart(1/(x + 1)/(x + 5))
Out[1]:
1 1
- ───────── + ─────────
4⋅(5 + x) 4⋅(1 + x)
In [2]: together(_)
Out[2]:
1
───────────────
(1 + x)⋅(5 + x)
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