6 Replies Latest reply on Aug 13, 2012 3:32 PM by Alin Vargatu

    Ruled surfaces.

    Pet Peever



      For me, a ruled surface contains a family of straight lines.

      More accurately., each point of the surface is contained in a straight line, lying on the surface.

      I learnt that, some years ago, and the wiki seems OK with the teacher learning me the concept




      So, how those surfaces can be ruled ?