# scipy.optimize.BFGS.initialize¶

BFGS.initialize(n, approx_type)[source]

Initialize internal matrix.

Allocate internal memory for storing and updating the Hessian or its inverse.

Parameters: n : int Problem dimension. approx_type : {‘hess’, ‘inv_hess’} Selects either the Hessian or the inverse Hessian. When set to ‘hess’ the Hessian will be stored and updated. When set to ‘inv_hess’ its inverse will be used instead.

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