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 155
ansionz=—x ; but we can see at once that there must be inflexional contact,for .r + 2=0 meets the curve in four points at B ; one is accounted forby cutting the other branch ; three are to be accounted for by contactwith its own l)ranch. Moreover, z{x+z)=x^,hence 2 and x + z must have the same sign… … Collecting these results in a diagram, shading parts of the plane inwhich the curve cannot lie (Fig. 33), and noting that the curve cannotcross any of the lines ^ = 0, »/ = 0, 2 = 0, .r + 2 = 0, except at /?, C, it is at once evident that the parts of the curve arejoined as indicated by the dotted…
Geometry, Analytic -- Plane
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