sc::nonlineartransform(3)

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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