Plane and solid analytic geometry; an elementary textbook (1905)
Ashton, Charles H. (Charles Hamilton), 1866- · New York, C. Scribner's Sons · leaf 272
2 2 loid. li h = a, %^ + ^=2cz represents a paraboloid ofrevolution about the Z-axis. … Fig. 23. 250 ANALYTIC GEOMETRY OF SPACE [Cii. V, § 33 Let tlie student discuss the form of the surface repre-sented by the equation %^ — ^ = 2>cz. It is called anhyperbolic paraboloid. (See Fig. 22.) PROBLEMS 1. Prove that in both the elliptic and hyperbolic parabo-loids the sections parallel to…
Geometry, Analytic
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