sc::NonlinearTransform(3) MPQC 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. Public Member Functions inherited from sc::RefCount int lock_ptr () const Lock this object. int unlock_ptr () const Unlock this object. void use_locks (bool inVal) start and stop using locks on this object refcount_t nreference () const Return the reference count. refcount_t reference () Increment the reference count and return the new count. refcount_t dereference () Decrement the reference count and return the new count. int managed () const void unmanage () Turn off the reference counting mechanism for this object. int managed () const Return 1 if the object is managed. Otherwise return 0. Public Member Functions inherited from sc::Identity Identifier identifier () Return the Identifier for this argument. Protected Attributes RefSCMatrix linear_transform_ Additional Inherited Members Protected Member Functions inherited from sc::RefCount RefCount (const RefCount &) RefCount & operator= (const RefCount &) 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 opti- mization. Member Function Documentation virtual void sc::NonlinearTransform::transform_coordinates (const RefSCVector & x) [pure virtual] Transform the coordinates. Implemented in sc::IdentityTransform. virtual void sc::NonlinearTransform::transform_gradient (const RefSCVector & g) [virtual] Transform the gradient at a point in the new coordinate system. trans- form_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 RefSymmSCMa- trix & ih) [virtual] Transform the inverse of the hessian. transform_gradient must be called first to initialize this routine. Reimplemented in sc::IdentityTransform. Author Generated automatically by Doxygen for MPQC from the source code. Version 2.3.1 Thu Sep 3 2026 sc::NonlinearTransform(3)
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