Package Name  LASO2 
Author(s)  David Scott 
Version  2 
Date  August 1983 
Language  Fortran IV 
Platform(s)  those with FORTRAN 
References 
4.4 The Lanczos Method 7.9 Block Lanczos 
Functionality 
This is a blocked Lanczos method package.
The LASO package is a set of FORTRAN IV subroutines for computing a few eigenvalues of a large (sparse) symmetric matrix. DILASO Finds all the eigenvalues and eigenvectors of a large sparse symmetric matrix outside a user defined excluded interval. DNLASO Finds a few eigenvalues and eigenvectors at either end of the spectrum of a large sparse symmetric matrix. (For single precision versions request SILASO and SNLASO) 
Location  http://www.netlib.org/laso/index.html 
