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 241
the common tangent to the two branches. … To investigate the nature of tlie siugnlaiit} at 0 due toa cusp at Z, we replace the cusp by its penultimate form THEORY OF CORRESPONDENCE. 227 (Fig. 55 (a)); inverting this, there is at 0 an evanescent loop,followed by a node iV, not on the tangent OZ (Fig. 55 (c)).The appearance is that of the…
Geometry, Analytic -- Plane
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