Module NEWTON in NAPACK

• NAPACK Information

• Components
  • Fullsource from NETLIB
  • Source from NETLIB

NEWTON

 
Given an estimate of an eigenvalue of a tridiagonal matrix, computes an improved
estimate by applying one step of Newton's method to the characteristic
polynomial.
 
Classes  :  D4a5 .  Tridiagonal matrix eigenvalue problems
            D4c .   Operations associated with matrix eigenvalue problems
            D4c2a . Compute eigenvalues of tridiagonal matrix
 
Type     : Fortran subroutine in NAPACK package.
Access   : Some uses prohibited. Portable.
Precision: Single.
 
Usage    : CALL NEWTON (T, S, K, D, U, N)
 
Details  : Fullsource Source
Sites    : (1) NETLIB
 

Implementation of NEWTON from NAPACK on NETLIB

 
NETLIB:    Public access repository, The University of Tennessee at
           Knoxville and Bell Laboratories
 
Precision: Single.
 
You may access components from NETLIB outside GAMS as follows.
 
   Source       : echo 'send only newton from napack' | mail netlib@ornl.gov
   Fullsource   : echo 'send newton from napack' | mail netlib@ornl.gov