Artifact 021b3b02c08e239056b43024c4d9f0ffe70f3383aab648ed43ca51af324f5433:

• File mtt/lib/cc/mtt_AlgebraicSolver.cc — part of check-in [af3953deae] at 2021-03-01 11:39:42 on branch master — Cleanup repository after cvs2git conversion. (user: jeff@gridfinity.com, size: 530) [annotate] [blame] [check-ins using] [more...]
• File mttroot/mtt/lib/cc/mtt_AlgebraicSolver.cc — part of check-in [eb84d8e84b] at 2002-07-15 12:50:51 on branch origin/master — The solution vector (_ui) is no longer re-zeroed each step.
  Retaining the previous value appears to give dramatically better performance.

  Messages to the console are now buffered through clog instead of using cerr. (user: geraint@users.sourceforge.net, size: 530) [annotate] [blame] [check-ins using]

#include "mtt_AlgebraicSolver.hh"

ColumnVector
MTT::AlgebraicSolver::solve (const ColumnVector	&x,
			     const ColumnVector	&u,
			     const double	&t,
			     const ColumnVector	&par)
{
  if (_nyz > 0)
    {
      _x = x;
      _uui.insert(u,0);
      _t = t;
      _par = par;
      Solve();
      _uui.insert(_ui,_nu);
    }
  else
    {
      _uui = u;
    }
  return _uui;
}

ColumnVector
MTT::AlgebraicSolver::eval (const ColumnVector	&ui)
{
  if (_nyz > 0)
    _uui.insert(ui,_nu);
  return mtt_ae(_x,_uui,_t,_par);
}