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 354
= k. vhether k be positive or negative,intersects the surface in an ellipse, withsemi-axes increasing proportionally to k. The plane Oyz. as well as the plane Ozx.intersects the surface in two straight linesthrough the origin. Every plane parallel toOyx or to Ozx intersects the surface in a… … 342 SOLID ANALYTIC GEOMETRY [X\T, § 369 cone of revolution, which can be generated by the revolntionof the line y = [a/c)z about the axis Oz. Patting a/c = m wecan write the equation of a cone of revolution about Oz, withvertex at 0, in the form X- + y~ = mz\ 370. Quadric Surfaces. The ellipsoid,…
Geometry, Analytic
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