Comment #11 on issue 2851 by asmeu...@gmail.com: logcombine(log(3) -
log(2)) does nothing
http://code.google.com/p/sympy/issues/detail?id=2851
Whatever function (I'm not sure which would do it right now), would
manually do it I guess.
I guess we could modify factor() to do it as part of
Comment #9 on issue 2851 by asmeu...@gmail.com: logcombine(log(3) - log(2))
does nothing
http://code.google.com/p/sympy/issues/detail?id=2851
are you referring to the discussion on issue 2397 ?
No, that wasn't it. There was some lengthy discussion that we had about
what logs should
Comment #10 on issue 2851 by smi...@gmail.com: logcombine(log(3) - log(2))
does nothing
http://code.google.com/p/sympy/issues/detail?id=2851
Yes, it will stay...but how do you factor it into that form. Maybe
there is a factor option...?
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Status: Accepted
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Labels: Type-Defect Priority-Medium Simplify
New issue 2851 by ronan.l...@gmail.com: logcombine(log(3) - log(2)) does
nothing
http://code.google.com/p/sympy/issues/detail?id=2851
logcombine(log(3) - log(2)) should return log(3/2) but it doesn't. This
used to
Updates:
Cc: smi...@gmail.com
Comment #1 on issue 2851 by ronan.l...@gmail.com: logcombine(log(3) -
log(2)) does nothing
http://code.google.com/p/sympy/issues/detail?id=2851
Bisected to:
commit 9dc1d111d489624eef3b0c9481c3e6d99cd869e0
Author: Chris Smith smi...@gmail.com
Date: Fri
Comment #2 on issue 2851 by asmeu...@gmail.com: logcombine(log(3) - log(2))
does nothing
http://code.google.com/p/sympy/issues/detail?id=2851
It's because we have:
In [46]: log(S(3)/2)
Out[46]: -log(2) + log(3)
so obviously it's impossible for logcombine to combine them. Perhaps this
Updates:
Status: NeedsDecision
Comment #3 on issue 2851 by asmeu...@gmail.com: logcombine(log(3) - log(2))
does nothing
http://code.google.com/p/sympy/issues/detail?id=2851
By the way, I remember being not sure about this change. Perhaps Chris
will remember where the discussion
Comment #4 on issue 2851 by ronan.l...@gmail.com: logcombine(log(3) -
log(2)) does nothing
http://code.google.com/p/sympy/issues/detail?id=2851
Right, I had forgotten about that, but if you step through the code, you
can see that it doesn't even try to return log(3/2), and there is the
Comment #5 on issue 2851 by smi...@gmail.com: logcombine(log(3) - log(2))
does nothing
http://code.google.com/p/sympy/issues/detail?id=2851
see also duplicate(?) issue 2709
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Comment #6 on issue 2851 by smi...@gmail.com: logcombine(log(3) - log(2))
does nothing
http://code.google.com/p/sympy/issues/detail?id=2851
are you referring to the discussion on issue 2397 ?
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Comment #8 on issue 2851 by smi...@gmail.com: logcombine(log(3) - log(2))
does nothing
http://code.google.com/p/sympy/issues/detail?id=2851
I don't mind if the autoevaluation goes away, but the logic for it should
not be duplicated (which makes tracking down logic errors difficult). Could
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