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 347
h center at the origin and edges 2 a, 2 b, 2 c, parallelto Ox, Oy, Oz, respectively. 334 SOLID AXALYTIC GEOMETRY [XVI, § 356 356. Special Cases. In general, the semi-axes a, b, c of theellipsoid, i.e. the intercepts made by it on the axes of coordi-nates, are different. But it may happen that two… … Fig. 141 is called an ellipsoid of revolution because it can be generatedby revolving the ellipse y\ce If- about the axis Ox (Fig. 141). Any cross-section at right angles to Ox, the axis of revolution, is a circle, w^hile the cross-sections at right angles to Oy and Oz are ellipses. The circular…
Geometry, Analytic
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