Classe « HessianUpdateStrategy »

Méthode scipy.optimize.HessianUpdateStrategy.update

Signature de la méthode update

def update(self, delta_x, delta_grad) 

Description

update.__doc__

Update internal matrix.

        Update Hessian matrix or its inverse (depending on how 'approx_type'
        is defined) using information about the last evaluated points.

        Parameters
        ----------
        delta_x : ndarray
            The difference between two points the gradient
            function have been evaluated at: ``delta_x = x2 - x1``.
        delta_grad : ndarray
            The difference between the gradients:
            ``delta_grad = grad(x2) - grad(x1)``.