[Matrix-SIG] Sparse objects

Jonah Lee ffjhl@uaf.edu
Wed, 19 May 1999 11:39:19 -0800 (AKDT)


On Wed, 19 May 1999, Travis Oliphant wrote:

> 
> It looks like there is enough interest to get something done and it sounds
> like there is enough experience in the user base to do a decent job of
> implementation.  
I agree.

> I rather like the idea of having multiple storage formats with a flag in
> the object indicating which storage format is in use.  This would allow
> better interfacing with existing code.  
Yes. I currently have some code using Numpy does just that. The formats of
interest to me would be:

1. banded, 2. skyline, 3. compressed column.

And each with a symmetric and non-symmetric version. Preconditioners would
be important as well.


Regards,
Jonah