Status: New
Owner: ----
Labels: Type-Defect Priority-Medium
New issue 4050 by [email protected]: integrate((3*x - 5)**2/(2*x -
1)**(7/2), x) _CoeffExpValueError
http://code.google.com/p/sympy/issues/detail?id=4050
Correct answer is (-41 + 80*x - 45*x**2)/(5*(2*x-1)**Rational(5/2))
integrate((3*x - 5)**2/(2*x - 1)**(7/2), x)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/pape/sympy/sympy/utilities/decorator.py", line 35, in
threaded_func
return func(expr, *args, **kwargs)
File "/home/pape/sympy/sympy/integrals/integrals.py", line 1628, in
integrate
risch=risch, manual=manual)
File "/home/pape/sympy/sympy/integrals/integrals.py", line 894, in doit
conds=conds)
File "/home/pape/sympy/sympy/integrals/integrals.py", line 1282, in
_eval_integral
h = meijerint_indefinite(g, x)
File "/home/pape/sympy/sympy/integrals/meijerint.py", line 1597, in
meijerint_indefinite
res = _meijerint_indefinite_1(f.subs(x, x + a), x)
File "/home/pape/sympy/sympy/integrals/meijerint.py", line 1612, in
_meijerint_indefinite_1
gs = _rewrite1(f, x)
File "/home/pape/sympy/sympy/integrals/meijerint.py", line 1549, in
_rewrite1
g = _rewrite_single(g, x, recursive)
File "/home/pape/sympy/sympy/core/cache.py", line 93, in wrapper
r = func(*args, **kw_args)
File "/home/pape/sympy/sympy/integrals/meijerint.py", line 1455, in
_rewrite_single
exponents_only=True), x)
File "/home/pape/sympy/sympy/integrals/meijerint.py", line 319, in
_get_coeff_exp
raise _CoeffExpValueError('expr not of form a*x**b: %s' % expr)
sympy.integrals.meijerint._CoeffExpValueError: expr not of form a*x**b:
0.0155061879258435
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