NAME

       sc::DFPUpdate - The DFPUpdate class is used to specify a Davidson, Fletcher, and Powell hessian update
       scheme.

SYNOPSIS

       #include <update.h>

       Inherits sc::HessianUpdate.

       Inherited by sc::BFGSUpdate.

   Public Member Functions
       DFPUpdate (StateIn &)
       DFPUpdate (const Ref< KeyVal > &)
           The KeyVal constructor reads the following keywords:
       void save_data_state (StateOut &)
           Save the base classes (with save_data_state) and the members in the same order that the StateIn CTOR
           initializes them.
       void update (const RefSymmSCMatrix &ihessian, const Ref< Function > &, const RefSCVector &xnew, const
           RefSCVector &gnew)
       void apply_transform (const Ref< NonlinearTransform > &)
       void set_inverse ()

   Protected Attributes
       RefSCVector xprev
       RefSCVector gprev

   Additional Inherited Members

Detailed Description

       The DFPUpdate class is used to specify a Davidson, Fletcher, and Powell hessian update scheme.

Constructor & Destructor Documentation

   sc::DFPUpdate::DFPUpdate (const Ref< KeyVal > &)
       The KeyVal constructor reads the following keywords:

       xprev
           The previous coordinates can be given (but is not recommended). The default is none.

       gprev
           The previous gradient can be given (but is not recommended). The default is none.

Member Function Documentation

   void sc::DFPUpdate::save_data_state (StateOut &) [virtual]
       Save  the  base  classes  (with  save_data_state) and the members in the same order that the StateIn CTOR
       initializes them. This must be implemented by the derived class if the class has data.

       Reimplemented from sc::HessianUpdate.

       Reimplemented in sc::BFGSUpdate.

Author

       Generated automatically by Doxygen for MPQC from the source code.

Version 2.3.1                                    Sun Oct 4 2020                                 sc::DFPUpdate(3)