Status: Accepted
Owner: ----
Labels: Type-Defect Priority-Medium
New issue 3070 by smi...@gmail.com: cse raises error with RootOf
http://code.google.com/p/sympy/issues/detail?id=3070
cse(RootOf(x**6-4*x**5-2,1))
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "sympy\simplify\cse_main.py", line 121, in cse
reduced_exprs = [preprocess_for_cse(e, optimizations) for e in exprs]
File "sympy\simplify\cse_main.py", line 43, in preprocess_for_cse
expr = pre(expr)
File "sympy\simplify\cse_opts.py", line 25, in sub_pre
e = e.xreplace(reps)
File "sympy\core\basic.py", line 897, in xreplace
return self.func(*args)
File "sympy\polys\rootoftools.py", line 112, in __new__
raise IndexError("root index out of [%d, %d] range, got %d" % (-degree,
degree-1, index))
IndexError: root index out of [-1, 0] range, got 1
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