Re: Using LAPACK in octave

[John W. Eaton]

On 11-Sep-2007, David Bateman wrote:

| David Bateman wrote:
| > 
| > I've often felt that Octave should change to use the same solver as
| > Matlab, especially now as the sparse matrices in Octave use a QR solver
| > with pivoting and don't give exactly the same results as the dense solvers..
| 
| If you want another reason to change consider Figure 3.3 on the page
| 
| http://www.netlib.org/lapack/lug/node71.html
| 
| for N = 500 dgelss is about 35 times slower than dgelsy

Switching is fine with me if the results are approximately as good.  I
chose dgelss because it was available and I knew about it.

jwe