An introductory account of certain modern ideas and methods in plane analytical geometry (1894)
Scott, Charlotte Angas, b. 1858 · London, New York : Macmillan and Co. · leaf 265
e are 2n connnon tangents, falling into n pairs ofconjugates. The intersections that do not come at w, w givethe foci, of which n are real, n{n — \) imaginary. But ifthe line infinity be a tangent to the curve, the curve hascontact with the Absolute, which is a singularity of positionto be… … thiougli one of the points w, co. Jiut as oo, w arc conjugateimaginary points, they cannot present themselves separately;there is consequently double contact with the Absolute. For THE ABSOLUTE. 251 the case of a conic this is the only way in whicli doublecontact can occur; for contact at B, B,…
Geometry, Analytic -- Plane
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