Comment #6 on issue 2011 by Vinzent.Steinberg: less self-confident simplify
http://code.google.com/p/sympy/issues/detail?id=2011
Alas, physics-related failure is not the only one on my 64 bit system:
________________________________________________________________________________
_______________ sympy/solvers/tests/test_ode.py:test_separable5
________________
File "/home/one/src/sympy/sympy/solvers/tests/test_ode.py", line 368, in
test_separable5
assert dsolve(eq15, f(x), hint='separable') == sol15
AssertionError
________________________________________________________________________________
______________ sympy/solvers/tests/test_solvers.py:test_tsolve_1
_______________
File "/home/one/src/sympy/sympy/solvers/tests/test_solvers.py", line 247,
in test_tsolve_1
assert solve(y-a*x**b , x) == [y**(1/b)*(1/a)**(1/b)]
AssertionError
________________________________________________________________________________
______________ sympy/solvers/tests/test_solvers.py:test_tsolve_2
_______________
File "/home/one/src/sympy/sympy/solvers/tests/test_solvers.py", line 255,
in test_tsolve_2
assert solve(y-a*x**b, x) == [y**(1/b)*(1/a)**(1/b)]
AssertionError
Why is there two times the same test? Interactively, I get this for the
second failure:
In [3]: solve(y-a*x**b , x)
Out[3]:
⎡ ⎽⎽⎽⎤
⎢ ╱ y ⎥
⎢b ╱ ─ ⎥
⎣╲╱ a ⎦
In [4]: solve(y-a*x**b, x) == [y**(1/b)*(1/a)**(1/b)]
Out[4]: False
In [3]: solve(y-a*x**b , x)
Out[3]:
⎡ ⎽⎽⎽⎤
⎢ ╱ y ⎥
⎢b ╱ ─ ⎥
⎣╲╱ a ⎦
In [4]: solve(y-a*x**b, x) == [y**(1/b)*(1/a)**(1/b)]
Out[4]: False
In [5]: srepr(solve(y-a*x**b , x))
Out[5]: [Pow(Mul(Symbol('y'), Pow(Symbol('a'), NegativeOne)),
Pow(Symbol('b'), NegativeOne))]
In [6]: srepr([y**(1/b)*(1/a)**(1/b)])
Out[6]: [Mul(Pow(Symbol('y'), Pow(Symbol('b'), NegativeOne)),
Pow(Pow(Symbol('a'), NegativeOne), Pow(Symbol('b'), NegativeOne)))]
--
You received this message because you are subscribed to the Google Groups
"sympy-patches" group.
To post to this group, send email to sympy-patches@googlegroups.com.
To unsubscribe from this group, send email to
sympy-patches+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/sympy-patches?hl=en.
