[SciPy-dev] Trouble with optimize.fmin_ncg

[Nils Wagner]

On Wed, 25 Jul 2007 15:34:37 -0400
  Alan G Isaac <aisaac at american.edu> wrote:
> Many thanks to Nils for finding and localizing the bug,
> Dmitrey for helping to localize it,
> and Nathan for fixing it!
> 
> It seems like a good idea to keep this around as
> a test case.  (A stripped down version.)
> Nils, any objections?

Please feel to free to use it. However, the theory
for unconstrained optimization connected with 
eigenproblems
can be found in the papers by Auchmuty, Mongeau and Torki.

The regression test communicated by Stefan in a previous 
email is even shorter.

Nils