/usr/share/octave/site/m/sundialsTB/idas/function_types/IDAPrecSolveFnB.m is in octave-sundials 2.5.0-3+b1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | %IDAPrecSolveFnB - type for preconditioner solve function.
%
% The user-supplied preconditioner solve function PSOLFUNB
% is to solve a linear system P z = r, where P is the
% preconditioner matrix.
%
% The function PSOLFUNB must be defined either as
% FUNCTION [ZB,FLAG] = PSOLFUNB(T,YY,YP,YYB,YPB,RRB,RB)
% or as
% FUNCTION [ZB,FLAG,NEW_DATA] = PSOLFUNB(T,YY,YP,YYB,YPB,RRB,RB,DATA)
% depending on whether a user data structure DATA was specified in
% IDAInit. In either case, it must return the vector ZB and the
% flag FLAG.
%
% See also IDAPrecSetupFnB, IDAPrecSolveFn, IDASetOptions
%
% NOTE: PSOLFUN and PSOLFUNB are specified through the property
% PrecSolveFn to IDASetOptions and are used only if the property
% LinearSolver was set to 'GMRES', 'BiCGStab', or 'TFQMR'.
% Radu Serban <radu@llnl.gov>
% Copyright (c) 2007, The Regents of the University of California.
% $Revision: 1.2 $Date: 2011/05/26 00:01:23 $
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