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:
...
Float space_norm (const field& uh) const;
};
IMPLEMENTATION¶
template <class Problem, class Field, class Real, class Size>
int damped_newton (Problem P, Field& u, Real& tol, Size& max_iter, odiststream* p_derr=0) {
return damped_newton(P, newton_identity_preconditioner(), u, tol, max_iter, p_derr);
}
