A general geometry and calculus : including book I. of the general geometry, treating of loci in a plane; and an elementary course in the differential and integral calculus (1881)
Olney, Edward, 1827-1887 · New York : Sheldon and Co. · leaf 81
uce from tlie general equation of the conic section (SI) theequation of a parabola whose parameter is 2p, referred to rectangularaxes, the axis of the curve falling on the axis of abscissas, and thevertex of the curve being at ^i to the right of the origin. Also theequation when the vertex is at x^… … 69, Genebal Scholium.—It will appearhereafter that the conic sections are formed bythe mutual intersection of a plane and a rightcone with a circular base. It is from this factthat the name of these curves is derived; andfrom this as a definition they we^e formerlystudied. The different species…
Geometry, Analytic · Calculus
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