Assertion: curvature | /r/HasProperty | drawn on surface
Facets:
Source sentences:
text: The curvature of curves drawn on a surface is the main tool for the defining and studying the curvature of the surface.
text: For a curve drawn on a surface (embedded in three-dimensional Euclidean space), several curvatures are defined, which relates the direction of curvature to the surface's unit normal vector.