HessianDirectionSolver (PULsE 1.98 API)

All Superinterfaces:: DirectionSolver, Serializable

public interface HessianDirectionSolver
extends DirectionSolver

Method Summary

All Methods Static Methods Instance Methods Default Methods
Modifier and Type	Method	Description
`default Vector`	`direction(GradientGuidedPath p)`	Uses an approximation of the Hessian matrix, containing the information on second derivatives, calculated with the BFGS formula in combination with the local value of the gradient to evaluate the direction of the minimum on `p`.
`static Vector`	`solve(ComplexPath cp, Vector rhs)`

- Method Detail
  - direction
```
default Vector direction(GradientGuidedPath p)
                  throws SolverException
```
    Uses an approximation of the Hessian matrix, containing the information on second derivatives, calculated with the BFGS formula in combination with the local value of the gradient to evaluate the direction of the minimum on p. Invokes p.setDirection().
    
    Specified by:
    
    direction in interface DirectionSolver
    
    Parameters:
    
    p - a Path object
    
    Returns:
    
    a Vector pointing to the minimum direction for this Path
    
    Throws:
    
    SolverException
  - solve
```
static Vector solve(ComplexPath cp,
                    Vector rhs)
             throws SolverException
```
    Throws:
    
    SolverException