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Re: chol?
From: |
Joe Koski |
Subject: |
Re: chol? |
Date: |
Sat, 15 Apr 2006 19:32:05 -0600 |
User-agent: |
Microsoft-Entourage/11.2.3.060209 |
on 4/15/06 7:21 PM, Vic Norton at address@hidden wrote:
> Well thanks Doug, Joe, Marius, Jordi, ...
>
> Now I know it's my screwed up system. I love Macintoshes, but I hate
> their incompatibilty with the real world.
>
> And now I remember what the Cholesky factor is. You start with an inner
> product and an arbitrary basis and construct an orthogonal basis from
> that. The first orthogonal vector is a multiple of the first basis
> vector. The second orthogonal vector a linear combination of the first
> two basis vectors, etc. The Choleksy factor is produced by choosing the
> standard delta-ij basis to start with.
>
> Oh well, at least the Octave stuff that is important to me does work on
> my system.
>
> Regards,
>
> Vic
>
Vic,
At least there's hope. Gaurav Khanna reported that when he built
octave-2.1.73, etc. on an Intel Mac with OS X 10.4.6, all went well. Now we
just need to nag Apple to get the G5 version of 10.4.6 working correctly.
Joe
> On 4/15/06, at 5:35 PM -0400, address@hidden wrote:
>> octave:1> C = [36 24; 24 25];
>> octave:2> C
>> C =
>>
>> 36 24
>> 24 25
>>
>> octave:3>
>> octave:3> chol(C)
>> ans =
>>
>> 6 4
>> 0 3
>> Upper Triangular
>
> On 4/15/06, at 4:16 PM -0400, Vic Norton wrote:
>> I start with the matrix
>> octave> C = [36 24; 24 25];
>> and do
>> octave> chol(C);
>> After waiting for a while I get
>> panic: Bus error -- stopping myself...
>> attempting to save variables to `octave-core'...
>> save to `octave-core' complete
>> Bus error
>> vic$
>
>
>
> -------------------------------------------------------------
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>
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> -------------------------------------------------------------
>
-------------------------------------------------------------
Octave is freely available under the terms of the GNU GPL.
Octave's home on the web: http://www.octave.org
How to fund new projects: http://www.octave.org/funding.html
Subscription information: http://www.octave.org/archive.html
-------------------------------------------------------------
- chol?, Vic Norton, 2006/04/15
Message not available
Re: chol?, Andy Pugh, 2006/04/16