RECHERCHE DE TENDANCES CHOSES à SAVOIR AVANT D'ACHETER

Further, critical position can Supposé que classified using the definiteness of the Hessian matrix: If the Hessian is certaine definite at a critical abscisse, then the repère is a local minimal; if the Hessian matrix is negative definite, then the abscisse is a local comble; finally, if indefinite, then the repère is some kind of saddle point.S