Status: Accepted
Owner: asmeurer
Labels: Type-Defect Priority-Medium Printing Polynomial

New issue 2676 by asmeurer: Derivatives should print in decreasing lexicographic order
http://code.google.com/p/sympy/issues/detail?id=2676

In [62]: f(x).diff(x, x) + f(x).diff(x) + f(x)
Out[62]:
                    2
       d           d
f(x) + ──(f(x)) + ───(f(x))
       dx           2
                  dx

In [63]: print f(x).diff(x, x) + f(x).diff(x) + f(x)
f(x) + Derivative(f(x), x) + Derivative(f(x), x, x)

But I think it should print in the reverse order, like I entered it. Probably this should be somehow matched up with the polynomial orders.

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