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sc::HessianUpdate Class Reference

The HessianUpdate abstract class is used to specify a hessian update scheme. More...

#include <update.h>

Inheritance diagram for sc::HessianUpdate:

[legend]Collaboration diagram for sc::HessianUpdate:

[legend]List of all members.

Public Methods
	HessianUpdate ()
	HessianUpdate (StateIn &)
	HessianUpdate (const Ref< KeyVal > &)
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. More...
virtual	~HessianUpdate ()
virtual void	update (const RefSymmSCMatrix &hessian, const Ref< Function > &, const RefSCVector &xnew, const RefSCVector &gnew)=0
virtual void	set_inverse ()
virtual void	apply_transform (const Ref< NonlinearTransform > &)
Protected Attributes
int	inverse_hessian_

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Detailed Description

The HessianUpdate abstract class is used to specify a hessian update scheme.

It is used, for example, by QNewtonOpt objects. Based on the value of inverse_hessian_ x and g may be reversed (see Schlegel, Ab initio Methods in Quantum Chemistry I, 1987, p 10).

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Member Function Documentation

void sc::HessianUpdate::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::SavableState. Reimplemented in sc::DFPUpdate.

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The documentation for this class was generated from the following file:

• update.h

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