EntityQ3427500· pop 7· linked from 36 articlesDarboux frameSign in to saveNatural moving frame in differential geometry of surfacesConnectionsJean Gaston DarbouxEntityprincipal curvatureEntitydifferential geometry of surfacesEntityInternational Standard Book NumberEntitymatrixEntityvector spaceEntitydifferential geometryEntityEuclidean spaceEntityeigenvectors and eigenvaluesEntityunit vectorEntitycurvatureEntitynormalEntitycoordinate originEntityÉlie CartanEntityRiemannian geometryEntitydiagonal matrixEntityinner product spaceEntityskew-symmetric matrixEntitygroup actionEntityrotation matrixEntityCategoriesCurvature (mathematics)Differential geometryDifferential geometry of surfaces