Aldis, W. Steadman (William Steadman), 1839-1928 · Cambridge [Eng.] Deighton, Bell, and co.; London, G. Bell and sons · leaf 56
g ellipse, and which have a com-mon conjugate axis. Let AQ he one hyperbola in the plane of zx, BR theother in the plane of yz, and RPQ any position of themoving ellipse, RM and QM its semi-axes, and P any pointon it. Let OA=a, OB = b, and OC, the common conju-gate semi-axis, = c. Draw PJV parallel… … or 1, the equation required. 38. The Hyperholoid of tuo Sheets. This is generated as the last surface except that thehyperbolas have a common transverse aais. Take the direction of the common axis as axis of x, theplanes of the hyperbolas as the planes of zx, xy, and theplane of yz parallel to that…
