Plane and solid analytic geometry; an elementary textbook (1901)
Ashton, Charles H. (Charles Hamilton), 1866- · New York, C. Scribner's sons · leaf 262
Fig. 22 loid. If b = a, — + -(- = 2 cz represents a paraboloid ofa1 a1 revolution about the Z-axis. … Fig. 23. 244 ANALYTIC GEOMETRY OF SPACE [Ch. V. § 33 Let the student discuss the form of the surface repre-sented by the equation ^- — ^- = 2cz. It is called anhyperbolic paraboloid. (See Fig. 22.) PROBLEMS 1. Prove that in both the elliptic and hyperbolic parabo-loids the sections parallel to the…
Geometry, Analytic
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