EntityQ840376· pop 26· linked from 92 articlesruled surfaceSign in to savesurface through every point of which runs a straight line which equally is on the surfaceConnectionsconeEntityhyperboloidEntityparaboloidEntityWarsawEntitygeometryEntityInternational Standard Book NumberEntityDavid HilbertEntitycircleEntityNizhny NovgorodEntityKobeEntitylineEntitypointEntityCremonaEntitydigital object identifierEntitycylinderEntityellipseEntityInternet ArchiveEntitycurveEntitythree-dimensional spaceEntityfieldEntityCategoriesAlgebraic surfacesAnalytic geometryComplex surfacesDifferential geometryDifferential geometry of surfacesGeometric shapesSurfaces