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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