Kenison, Ervin, Bradley, Harry Cyrus, 1871-1936 · New York : The Macmillan Company · leaf 297
now contains two infinite points, numbers 3 and 7. Theresult is that the curve of intersection, as traced on the sur-face of the cylinder, consists of two infinite branches, to whichthe elements 3 and 7 are asymptotic. These two branches ofthe intersection lie on opposite nappes of the cone. The… … C. Two Cones. In the case of two cones, to discover thenumber of parallel elements, draw a third cone, whose vertexcoincides with the vertex of one of the given cones, and whoseelements are parallel respectively to the elements of the other.Then, corresponding to the number of possible points…
Geometry, Descriptive
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
