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 157
form z\^x-y) = x^-y^,that is, z\Ax ~y) = {x — y){x — ioy){x — M-y), we see that the curve meets 3 = 0 in cue real point, and that the tangent 142 T^NTCURSAL CURVES. TRACING OF CURVES. there i.s x-y = 0 ; and since xy is on the curve, writing „~ = 1 we findthat the tangent at .vy is 4.r-y = 0, and… … 1 17. If an equation be given in Cartesian coordinates, it can be madehomogeneous by using the line infinity for the third side of the triangleof reference. Thiis, for example, ,f3=_y- can be discussed under the form ;i form whicli e.\iiil)its tlie inflexion at induity on the line y — O,…
Geometry, Analytic -- Plane
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