Posted by Scott Betts on October 14, 1997 at 15:19:44:

In Reply to: linear algebra posted by mark ibram on October 09, 1997 at 05:27:03:

: I have a set of linear tomographic equations forming a large underconstrained overdetrmined sparse system. All solution methods I have deal with sqyuare matrices..

: Can anyone help me finding out how to pre-condition my matrices so solve the equations ?

: thanks

: mark

Mark,

The best place to start is the LINALG directory on

Netlib. There's a link to it here.

Hope this helps!