o Eb @s0ddlmZddlmZdgZ  dddZdS) )_minimize_trust_region)get_trlib_quadratic_subproblem_minimize_trust_krylovNTc Ks|dur tdd|dur|durtd|r/t||f||||tdd|ddd d |St||f||||td d |ddd d |S) a Minimization of a scalar function of one or more variables using a nearly exact trust-region algorithm that only requires matrix vector products with the hessian matrix. .. versionadded:: 1.0.0 Options ------- inexact : bool, optional Accuracy to solve subproblems. If True requires less nonlinear iterations, but more vector products. Nz&Jacobian is required for trust region zexact minimization.zaEither the Hessian or the Hessian-vector product is required for Krylov trust-region minimizationggdispF)Z tol_rel_iZ tol_rel_br)argsjachesshesspZ subproblemg:0yE>gư>) ValueErrorrrget)ZfunZx0rrr r ZinexactZtrust_region_optionsrrD/usr/lib/python3/dist-packages/scipy/optimize/_trustregion_krylov.pyrs2    )rNNNT)Z _trustregionrZ_trlibr__all__rrrrr s