Updates:
Status: Started
Labels: NeedsReview
Comment #9 on issue 2590 by ness...@googlemail.com: jn_zeros in
functions/special/bessel.py should return SymPy Floats, not Python floats
http://code.google.com/p/sympy/issues/detail?id=2590
Pull request:
https://github.com/sympy/sympy/pull/512
This pull request does not add symbolic objects to represent these zeros. I
do they they can be useful (in particular since functions like besselj(0,
x*BesselJZero(0, n)) are orthogonal wrt n and a specific weight), however:
1) To be truly useful these objects have to interact, and I think to make
this work one actually needs a non-trivial use-case at hand.
2) The zeros of the derivatives are just as useful (and provided by
mpmath), but I see even less how the interactions should be implemented
cleanly here.
3) Most importantly, the zeros all have to be computed in order, there are
no good methods (available) for e.g. computing the 50-th zero without
computing the other 49.
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