sc_HessianUpdate3
The hessianupdate abstract class is used to specify a hessian update scheme.
Usage
Inherits sc::SavableState.
Inherited by
sc::DFPUpdate,
and
sc::PowellUpdate.
Public Member Functions
HessianUpdate (StateIn
&)
HessianUpdate (const
Ref<
KeyVal
>
&)
void save_data_state
(StateOut
&)
virtual void
set_inverse
()
virtual void
apply_transform
(const
Ref<
NonlinearTransform
>
&)
Protected Attributes
int inverse_hessian_
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).
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, sc::BFGSUpdate, and sc::PowellUpdate.
History
- Debian 12 (Bookworm): the text shown here
- Debian 11 (Bullseye)
- Debian 6.0 (Squeeze)
- Debian 5.0 (Lenny)
- Debian 4.0 (Etch)
- Debian 3.1 (Sarge)