[pstricks] legendre polynomials

mathias legrand legrand.mathias at gmail.com
Mon Jul 5 14:12:11 CEST 2010

>> as far as I am aware, Legendre polynomials are not part of the pstricks
>> family.
>> Could they be implemented soon? Or maybe, a simple recursive loop with
>> the usual
>> pstricks commands is fine?
> PSTricks knows the PostScript Function Sum. See example in
> pst-news10.pd

Thanks, I see that the Derive and sum commands can be of great help. 
Anyway, is postscript aware
of recursive statements? Most of the polynomials of interest are defined 
as, for instance:
with some initial P_0(x) and P_1(x) polynomials.

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