Updates:
Labels: NeedsReview smichr
Comment #11 on issue 784 by [email protected]: .match(g1 * log(gamma) + g2 *
gamma + g3) doesn't work
http://code.google.com/p/sympy/issues/detail?id=784
https://github.com/sympy/sympy/pull/1673
def test_issue_784():
mu, gamma, x = symbols('mu gamma x')
f = (- gamma * (x-mu)**2 - log(gamma) + log(2*pi)) / 2
g1 = Wild('g1', exclude=[gamma])
g2 = Wild('g2', exclude=[gamma])
g3 = Wild('g3', exclude=[gamma])
assert f.expand().match(g1 * log(gamma) + g2 * gamma + g3) == \
{g3: log(2)/2 + log(pi)/2, g1: -S(1)/2, g2: -mu**2/2 + mu*x - x**2/2}
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