Hi, I am using Windows XP 32-bit, Python 3.3 release, sympy 0.7.2.rc1 and
have the following problem
>>> sympy.solve([sympy.Abs(4*x-7)-5, sympy.Abs(3-8*x)-1],x)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Python33\lib\site-packages\sympy\solvers\solvers.py", line 783,
in solve
solution = _solve_system(f, symbols, **flags)
File "C:\Python33\lib\site-packages\sympy\solvers\solvers.py", line 1306,
in _solve_system
raise NotImplementedError('no valid subset found')
NotImplementedError: no valid subset found
>>> sympy.solve([sympy.Abs(4*x-7)-5],x)
[(1/2,), (3,)]
>>> sympy.solve([sympy.Abs(3-8*x)-1],x)
[(1/4,), (1/2,)]
>>> sympy.__version__
'0.7.2.rc1'
Why in the first case, not return (1/2,) instead of "no valid subset found"
?
Thanks
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