DAMPED_NEWTON(4RHEOLEF) - man page online | special files

damped_newton(4rheolef)                    rheolef-6.6                    damped_newton(4rheolef)

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);
       }

SEE ALSO
       newton(4)

rheolef-6.6                                rheolef-6.6                    damped_newton(4rheolef)