Antisymmetric
Kev tiv thaiv tsis zoo txhais tau tias cov duab geometric, thaj chaw muaj ciam, thiab cov khoom siv ntawm cov khoom tsom xam yog qhov sib npaug txog qee yam nplaim, thiab lub luag haujlwm yog antisymmetric txog saum npoo, thiab saum npoo yog hu ua antisymmetric. Cov nodes ntawm qhov saum npoo no ua tiav pes tsawg lub teb sib hloov thiab xoom tangential kev xa tawm (piv txwv li, yog tias qhov coj li qub ntawm qhov chaw tiv thaiv kev tiv thaiv yog x axis, ces: Uy=Uz=0, Rx=0).