Analytic geometry for colleges, universities, and technical schools (1892)
Nichols, E. W. (Edward West), 1858- · Boston [Mass.] : Leach, Shewell & Sanborn · leaf 209
d cube; for the equationof the cissoid gives x^ y = 2 a — X OPTShence HB^ = ^ (since HB =y,OB.= x, and HT =Hi 2 a — x). The similar triangles CDT and HBT give CD : CT :: HB : HT. 194 PLANE ANALYTIC GEOMETRY. But CD = 2 CT by construction; hence HB = 2 HT 2This value of HT in the value of HB^ above… … Fig. 62. V HIGHER PLANE CURVES. 195 The witch is the locus of a point P on the produced ordi-nate DP of a circle, so that the produced ordinate DP is tothe diameter of the circle OA as the ordinate DM is to theouter segment DA of the diameter. It may also be defined as the locus of a point P on…
Geometry, Analytic
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