%CVRhsFnB - type for user provided RHS function for backward problems.
%
%   The function ODEFUNB must be defined either as
%        FUNCTION [YBD, FLAG] = ODEFUNB(T,Y,YB)
%   or as
%        FUNCTION [YBD, FLAG, NEW_DATA] = ODEFUNB(T,Y,YB,DATA)
%   depending on whether a user data structure DATA was specified in
%   CVodeMalloc. In either case, it must return the vector YBD
%   corresponding to fB(t,y,yB).
%
%   The function ODEFUNB must set FLAG=0 if successful, FLAG<0 if an
%   unrecoverable failure occurred, or FLAG>0 if a recoverable error
%   occurred.
%
%   See also CVodeInitB
%

% Radu Serban <radu@llnl.gov>
% Copyright (c) 2005, The Regents of the University of California.
% $Revision: 1.1 $Date: 2007/05/11 18:51:33 $
