Re: normalized ALF (Assotiated Legendre Function)

[kruvalig]

Thank's a lot for quick answer. I very suprised of it.

On Sun, 10 Feb 2008 01:37:10 +0300, Ben Abbott <address@hidden> wrote:

> I've posted a patch and changelog to the maintainers list. Attached to  
> this
> email is the modified script.
> http://www.nabble.com/file/p15391002/legendre.m legendre.m

Can any one test output of this file and output matlab file to high degree  
(>70).

  result_mlab=legendre(80,[-1:0.1:1], "norm");
  result_octave=legendre(80,[-1:0.1:1], "norm");
  max(max(abs(result_mlab-result_octave)))

Here ftp://77.108.213.161/result_octave_80 is a file, generated in octave  
by code:

  result_octave=legendre(80,[-1:0.1:1], "norm");
  save -v7 result_octave_80

I think this code
  scale = (-1).^m .* sqrt ((n+0.5) .* factorial (n-m) ./ factorial (n+m));
whill give bad answer in high order of legendre.
And we have to write: To what order it compute in right.