Posted by Nigel Badnell on November 28, 1997 at 11:11:39:

I have large block tri-diagonal matrices that I want

all the e-values and e-vectors from, real symmetric

initially, but complex symmetric in general. Lanczos

methods are generally the way to go for large sparse

matrices but block tridiagonal should make things

easier.....does anyone have any suggestions, pointers

to codes? (The blocks themselve are non-sparse but

are readily diagonalizable.)

- a problem
**Barak Chizi***06:21:15 9/19/98*(0) - Re: diagonalizing large sparse matrices
**Terry J. Hilsabeck***01:37:14 8/02/98*(0)