Status: Valid
Owner: ----
Labels: Type-Defect Priority-Medium Solvers
New issue 4112 by [email protected]: solve doesn't work with rational=True
http://code.google.com/p/sympy/issues/detail?id=4112
See http://stackoverflow.com/q/20225413/161801.
# define the symbols we wish to use
se = symbols('se')
# assign some constants
D = S(0.24)
sn = S(38e6)
Q = S(0.64)
Dprime = 1.0 - D
mc = 1 + (se/sn)
# this is the expression that we wish to make equal to Q
expr = (S(1)/(pi * (mc * Dprime - S(0.5))))
# this should print the value for se
print(solve(Eq(expr, Q),se))
It doesn't give a solution. If you pass rational=False to solve, it works.
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