On Thursday, March 22, 2018 at 10:51:16 PM UTC, Nicolas M. Thiéry wrote:
>
> > option (c): strike!
> > :-)
>
> Wait, wait, wait. Going on strike is a French thing! We won't let
> brexit get away with stealing away our dear socialist traditions!
>
FYI, UK universities academics have been on s
> option (c): strike!
> :-)
Wait, wait, wait. Going on strike is a French thing! We won't let
brexit get away with stealing away our dear socialist traditions!
:-)
Nicolas
--
Nicolas M. Thiéry "Isil"
http://Nicolas.Thiery.name/
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Oh, by the way, Wolfram Mathworld is just completely wrong on this page you
referenced.
There is a huge difference between the two functions.
Also, there is no such thing as an associated Legendre polynomial.
There is a Legendre polynomials, but if you take the degrees and orders to
be integers f
The Ferrers functions are defined on the real segment (-1,1).
The associated Legendre functions are in general defined on the Complex
plane except for the ray (-\infty,1].
Typically Ferrers functions are written with argument x=\cos\theta, |x|<1
and associated Legendre functions are written with
Thanks. If that is the case, then presumably this *is* a bug in Sage Math
and Func_assoc_legendre_P should distinguish the special cases for n == m
when x > 1 or x < 1 when evaluating associated Legendre polynomials.
Would you be able to clarify the distinction between Ferrers functions of
the
On Thursday, March 22, 2018 at 3:25:06 AM UTC-7, Samuel Lelievre wrote:
>
> Ralf wrote:
> > Thanks,
> > P.S. Still someone should contact DLMF with the right arguments.
>
> I just emailed them with cc to sage-devel.
>
There's nothing wrong with the formula. The Legendre function in the DLMF
is
Thanks. I am waiting for an account on Sage trac, then I will submit a bug
report.
On Thursday, 22 March 2018 10:25:06 UTC, Samuel Lelievre wrote:
>
> Ralf wrote:
> > Thanks,
> > P.S. Still someone should contact DLMF with the right arguments.
>
> I just emailed them with cc to sage-devel.
>
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Ralf wrote:
> Thanks,
> P.S. Still someone should contact DLMF with the right arguments.
I just emailed them with cc to sage-devel.
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Dear DLMF [0] maintainers,
(cc: sage-devel mailing list)
An error in one of the Rodrigues-Type formulas on your website,
https://dlmf.nist.gov/14.7#E15
might have been uncovered, see a current discussion [1] on the Sage-devel
mailing list [2] (development discussion list for SageMath, the Sa
arb agrees here:
sage: CBF(1/2).legendre_P(1,1)
[-0.8660254037844386 +/- 5.90e-17]
So I'd suggest using complex balls for your numerics until the bug is fixed.
Thanks,
P.S. Still someone should contact DLMF with the right arguments.
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