NAME
damped_newton -- damped Newton nonlinear algorithm
DESCRIPTION
Nonlinear damped Newton algorithm for the resolution of the following problem:
F(u) = 0
A simple call to the algorithm writes:
my_problem P;
field uh (Vh);
damped_newton (P, uh, tol, max_iter);
In addition to the members required for the Newton algorithm (see newton(4)), the space_norm is required for the damped Newton line search algorithm:
class
my_problem {
public:
...
value_type derivative_trans_mult (const value_type& mrh)
const;
Float space_norm (const value_type& uh) const;
};
IMPLEMENTATION
template
<class Problem, class Field, class Real, class Size>
int damped_newton (const Problem& F, Field& u,
Real& tol, Size& max_iter, odiststream*
p_derr=0)
SEE ALSO
COPYRIGHT
Copyright (C) 2000-2018 Pierre Saramito <Pierre.Saramito [AT] imag.fr> GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>;. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.