Module FIXPQS in HOMPACK

• HOMPACK Information

• Components
  • Fullsource from NETLIB
  • Source from NETLIB
  • Test from NETLIB

FIXPQS

 
Finds a fixed point or zero of a vector function f(x) or tracks a zero curve of a
general homotopy map rho(a,lambda,x), using an augmented Jacobian algorithm. The
user must provide subroutines for function and derivative evaluation. The
Jacobian matrix is assumed to be sparse and must be provided in packed skyline
storage format.
 
Classes  :  F2 . Solution of a system of nonlinear equations
 
Type     : Fortran subroutine in HOMPACK package.
Access   : Some uses prohibited. Portable.
Precision: Double.
 
Usage    : CALL FIXPQS (N, Y, IFLAG, ARCRE, ARCAE, ANSRE, ANSAE, TRACE, A, NFE,
           ARCLEN, YP, YOLD, YPOLD, QR, LENQR, PIVOT, PP, RHOVEC, Z0, DZ, T,
           WORK, SSPAR, PAR, IPAR)
 
Details  : Fullsource Source Test
Sites    : (1) NETLIB
 

Implementation of FIXPQS from HOMPACK on NETLIB

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