Updates:
Status: Started
Owner: matt...@gmail.com
Cc: -matt...@gmail.com
Labels: mattpap
Comment #4 on issue 2354 by matt...@gmail.com: isympy -o doesn't parse bad
arguments correctly
http://code.google.com/p/sympy/issues/detail?id=2354
Yes, it should be done by isympy. There are rev-orderings, e.g.:
mateusz@hpfem-2:~/repo/git/sympy$ bin/isympy -q -o rev-lex
IPython console for SymPy 0.6.7-git (Python 2.6.6) (ground types: python)
In [1]: x**2 + 1
Out[1]:
2
1 + x
You just need to use dash, e.g. rev-lex, rev-grlex. I don't mind to support
reversed orderings that names don't include dash. I did it this way,
because orderings are defined in sympy.polys, but reversed orderings are
only for printing purpose and are defined (parsed) in sympy.printing.
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