#5930: [with patch, needs work] switch from maxima to pynac for core symbolic
manipulation system
-------------------------+--------------------------------------------------
Reporter: was | Owner: mhansen
Type: enhancement | Status: assigned
Priority: blocker | Milestone: sage-4.0
Component: symbolics | Keywords:
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Comment(by boothby):
I've been reading through the megabyte patch, and testing every function
that's been touched. I'd estimate my coverage of the file to be about
20%, and I made sure to bounce around a bunch (that is, I didn't just read
the top or bottom 20%). I didn't look at many corner cases, because I was
trying to test as much as I could, and it often takes thought to come up
with good corner cases. In the end, I found some things that Maxima
crashed on when it tried to simplify, like
{{{
exp(sum([log(x^(1/n)) for n in range(1,1000)]))
}}}
but other than that, I found the entire system to be stable and useful.
In a lot of easy cases, it's *much* faster than before, which makes me
happy.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/5930#comment:16>
Sage <http://sagemath.org/>
Sage - Open Source Mathematical Software: Building the Car Instead of
Reinventing the Wheel
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