Comment #1 on issue 3510 by Franck.Dernoncourt: implement Stirling numbers
http://code.google.com/p/sympy/issues/detail?id=3510
You might want to use dynamic programming instead, which is by faster.
Computing n=k=100 takes forever using your code and is immediate (< 1
second) using dynamic p
Comment #11 on issue 978 by smi...@gmail.com: extract (-1) from all
expressions canonically
http://code.google.com/p/sympy/issues/detail?id=978
The `z=m.row_join(eye(9)).rref()[0][0,11]` as described above took over 3.5
minutes (that's when I quit waiting) to get a result for `cancel(z)`
Comment #6 on issue 3576 by smi...@gmail.com: symbols('aa:g') should work
http://code.google.com/p/sympy/issues/detail?id=3576
I also added some fixes for a variety of issues in
https://github.com/Aki92/sympy/pull/1
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Comment #3 on issue 3516 by asmeu...@gmail.com: gcd for Rationals is much
slower than it should be
http://code.google.com/p/sympy/issues/detail?id=3516
I guess just copy _rgcd from Mul to Rational.
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Comment #2 on issue 3581 by asmeu...@gmail.com: Implement arg.rewrite(atan2)
http://code.google.com/p/sympy/issues/detail?id=3581
The formula is already in eval. You just need to write a rewrite method.
Look at how other functions do it (search for "eval_rewrite").
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Comment #1 on issue 3581 by akshit.j...@gmail.com: Implement
arg.rewrite(atan2)
http://code.google.com/p/sympy/issues/detail?id=3581
Sir I want to fix this bug can you just tell me from where should I start
just a hint will be helpful.
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Comment #2 on issue 3516 by akshit.j...@gmail.com: gcd for Rationals is
much slower than it should be
http://code.google.com/p/sympy/issues/detail?id=3516
So please can anyone tell that what are the changes to be made as I am
interested in this fixing this bug.
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