Analytic geometry and principles of algebra (1913)
Ziwet, Alexander, 1853-1928, Hopkins, Louis Allen, joint author, Hedrick, E. R. (Earle Raymond), 1876-1943 · New York, The Macmillan Company · leaf 353
Fk;. U.) i.;. 14ti axis Oz are evidently ellipses in tlie ease of the elliptic parab-oloid, and hy|terl)olas in the case of the hyperbolic paraboloid.The plane 0./7/ itself has only the uriuin in common with theelliptic i^araboloil: it intersects the hy})(rbolic ]iaraboloid inthe two lines .//- (/-…
Geometry, Analytic
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