ó ‚(phäãóT•SrSSKrSSKrSSKrSSKJrJr /r SSjr "SS\5r g) z$Newton-CG trust-region optimization.éNé)Ú_minimize_trust_regionÚBaseQuadraticSubproblemc ój•Uc [S5eUcUc [S5e[X4X#UU[S.UD6$)aö Minimization of scalar function of one or more variables using the Newton conjugate gradient trust-region algorithm. Options ------- initial_trust_radius : float Initial trust-region radius. max_trust_radius : float Maximum value of the trust-region radius. No steps that are longer than this value will be proposed. eta : float Trust region related acceptance stringency for proposed steps. gtol : float Gradient norm must be less than `gtol` before successful termination. zURXWU5up«XZU--n X[U--n U"U 5U"U 5:aU nOU nSnXä4$[R"Xf5nXù- nUUU--n[RRU5U:¼a URXWU5up«X[U--nSnXä4$UUU--n[R"UU5n[R "U5U:aSnUU4$UU- nU*UU--nUnUnUnGM&)a$ Solve the subproblem using a conjugate gradient method. Parameters ---------- trust_radius : float We are allowed to wander only this far away from the origin. Returns ------- p : ndarray The proposed step. hits_boundary : bool True if the proposed step is on the boundary of the trust region. Notes ----- This is algorithm (7.2) of Nocedal and Wright 2nd edition. Only the function that computes the Hessian-vector product is required. The Hessian itself is not required, and the Hessian does not need to be positive semidefinite. gà?FTr) ÚnpÚ zeros_likerÚminÚmathÚsqrtÚjac_magr ÚdotÚget_boundaries_intersectionsÚscipyÚlinalgÚnorm)ÚselfÚ trust_radiusÚp_originÚ toleranceÚ hits_boundaryÚzÚrÚdÚBdÚdBdÚtaÚtbÚpaÚpbÚ p_boundaryÚ r_squaredÚalphaÚz_nextÚr_nextÚr_next_squaredÚ beta_nextÚd_nexts rÚsolveÚCGSteihaugSubproblem.solve,s¿€ô2—=’= §¡Ó*ˆô˜œTŸYšY t§|¡|Ó4Ó5¸¿ ¹ ÑDˆ ð <‰<˜)Ó #Ø!ˆMØÐ*Ð *ð ˆØ H‰HˆØ ˆBˆð𗑘A“ˆBÜ—&’&˜“-ˆCØa‹xð ×:Ñ:¸1ÀÓN‘ؘa™‘Zؘa™‘ZÙ˜“8™d 2›hÓ&Ø!#‘Jà!#JØ $ Ø!Ð0Ð0ÜŸš˜q› ˆIØ‘OˆEؘ ™‘]ˆFÜ|‰|× Ñ  Ó(¨LÓ8ð×:Ñ:¸1ÀÓN‘Ø a¡™Z Ø $ Ø!Ð0Ð0ؘ ™‘^ˆFÜŸVšV F¨FÓ3ˆNÜyŠy˜Ó(¨9Ó4Ø % ؘ}Ð,Ð,Ø&¨Ñ2ˆIØW˜y¨1™}Ñ,ˆFðˆA؈A؈AòQr©N)Ú__name__Ú __module__Ú __qualname__Ú__firstlineno__Ú__doc__r8Ú__static_attributes__r:rrr r *s †ÙDõRrr )r:NNN) r?rÚnumpyrÚ scipy.linalgrÚ _trustregionrrÚ__all__rr r:rrÚrEs-ðÙ*Û ãÛßKà €ô:ô>TÐ2õTr