Re: Issue 3549 in sympy: totient and totient_ are identical (?)

2012-12-27 Thread sympy
Updates: Status: Invalid Comment #1 on issue 3549 by smi...@gmail.com: totient and totient_ are identical (?) http://code.google.com/p/sympy/issues/detail?id=3549 Are you looking at an old version of SymPy? commit 5257b4759900331b832e67e55190bacf0d8bc8ad Author: Bharath M R Date:

Re: Issue 3545 in sympy: solving a complicated expression with square roots

2012-12-27 Thread sympy
Comment #3 on issue 3545 by smi...@gmail.com: solving a complicated expression with square roots http://code.google.com/p/sympy/issues/detail?id=3545 I'm not sure why unrad is not attempted, but if you use it you obtain: eq -sqrt((m - q)**2 + (-m/(2*q) + 1/2)**2) + sqrt((-m**2/2 - sqrt(4*m

Re: Issue 3563 in sympy: Implement faster combinatorial enumeration algorithms

2012-12-27 Thread sympy
Comment #3 on issue 3563 by smi...@gmail.com: Implement faster combinatorial enumeration algorithms http://code.google.com/p/sympy/issues/detail?id=3563 Naming - should I just put underscores in front of multiset_partitions_taocp and its visitor functions, and then wire it in to the mul

Re: Issue 3574 in sympy: live.sympy.org/#example should show an open example tab in sidebar

2012-12-27 Thread sympy
Comment #3 on issue 3574 by asmeu...@gmail.com: live.sympy.org/#example should show an open example tab in sidebar http://code.google.com/p/sympy/issues/detail?id=3574 That last url has a strange printing issue (some of the input text is LaTeX printed). I can't reproduce it without the url,

Re: Issue 3565 in sympy: Sum(x**n, (n, 0, oo)).doit() is wrong

2012-12-27 Thread sympy
Comment #4 on issue 3565 by asmeu...@gmail.com: Sum(x**n, (n, 0, oo)).doit() is wrong http://code.google.com/p/sympy/issues/detail?id=3565 It seems that it no longer sees that summation(2**n, (n, 1, oo)) is oo if you do this. The fix I guess would be to add a new check if the base is num

Re: Issue 3563 in sympy: Implement faster combinatorial enumeration algorithms

2012-12-27 Thread sympy
Comment #2 on issue 3563 by pkrathma...@gmail.com: Implement faster combinatorial enumeration algorithms http://code.google.com/p/sympy/issues/detail?id=3563 A few things I have thought of since my first post- I was thinking I could have multiset_partitions_taocp() just take a list (array)