sc_NonlinearTransform (3) - Linux Manuals

NAME

sc::NonlinearTransform -

The NonlinearTransform class transforms between two nonlinear coordinate systems.

SYNOPSIS

#include <transform.h>

Inherits sc::RefCount.

Inherited by sc::IdentityTransform.

Public Member Functions

virtual void transform_coordinates (const RefSCVector &x)=0
Transform the coordinates.
virtual void transform_gradient (const RefSCVector &g)
Transform the gradient at a point in the new coordinate system.
virtual void transform_hessian (const RefSymmSCMatrix &h)
Transform the hessian to the new coordinate system.
virtual void transform_ihessian (const RefSymmSCMatrix &ih)
Transform the inverse of the hessian.

Protected Attributes

RefSCMatrix linear_transform_

Detailed Description

The NonlinearTransform class transforms between two nonlinear coordinate systems.

It is needed when a change of coordinates occurs in the middle of an optimization.

Member Function Documentation

virtual void sc::NonlinearTransform::transform_gradient (const RefSCVector & g) [virtual]

Transform the gradient at a point in the new coordinate system. transform_coordinates must be called first to give the point.

Reimplemented in sc::IdentityTransform.

virtual void sc::NonlinearTransform::transform_hessian (const RefSymmSCMatrix & h) [virtual]

Transform the hessian to the new coordinate system. transform_gradient must be called first to initialize this routine.

Reimplemented in sc::IdentityTransform.

virtual void sc::NonlinearTransform::transform_ihessian (const RefSymmSCMatrix & ih) [virtual]

Transform the inverse of the hessian. transform_gradient must be called first to initialize this routine.

Reimplemented in sc::IdentityTransform.

Author

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