Comment #29 on issue 821 by pr...@goodok.ru: multiple arguments for max and
other improvements
http://code.google.com/p/sympy/issues/detail?id=821
Please note that for a complex input we have by default 'is_real ==
None'. So an exception could only be raised for 'is_real == False'.
If in the case of Max(cos(x), sin(x)) will not raise exception, then it is
acceptably.
Max(x, 1) will assume it is real
I think that Max assume only that they are incomparable with each other (in
method `is_connected`), and check comparability while checking `<` `>` or
`==` to be boolean.
BTW, I think if any checking for reals is needed, then it can be
encapsulated into `is_connected`. But more deeply, at least additionally,
to place it in core, where `'>' '<' '==' are implemented.
(Formally, If I understand, the reasons are the same as for Max)
About `remove_duplicates` and Python 2.4. Thanks, I'm afraid that `list`
doesn't work with `sets` properly there.
And I see a little later your branch.
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