Updates:
Labels: -EasyToFix Matching
Comment #6 on issue 2226 by [email protected]: Test failure for tsolve()
http://code.google.com/p/sympy/issues/detail?id=2226
The discrepancy happens when substituting the pattern into the solution.
More precisely, I've isolated this part of the solution: (-e_*f_**(h_ -
c_*g_/b_)/a_)**(1/d_). The result of solution.subs(match) depends on the
order of the keys inside the match dictionary. Apparently, for most orders,
the result is 7*2**(4/5)*6**(1/5)/2 but when the stars are aligned
correctly, we get 7*3**(1/5).
I don't think I'll debug any further and I wish that this used
my .replace() method from issue 2026.
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