Analytic geometry for colleges, universities, and technical schools (1892)
Nichols, E. W. (Edward West), 1858- · Boston [Mass.] : Leach, Shewell & Sanborn · leaf 214
Fig. 64. For join H and C; then from the nature of the conchoidHK = HC = OB.. From the figure PCX = CAK + CKA;but CAK = CHA = 2 CKA; hence PCX = 2 CKA + CKA. Therefore CKA = ^ PCX. We might have used the superior branch for the same pur-pose. 155. The Limacon.Y … Fig. 65. 200 PLANE ANALYTIC GEOMETRY. The lima9on is the locus generated by the intersection oftwo lines OP, CP which are so related that during their revo-lution about the points 0 and C the angle PCX is alwaysequal to | POX. 1. To deduce the polar equation. Let 0 be the pole, and OX the initial…
Geometry, Analytic
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![An illustration from Nicolai Copernici Torinensis De reuolutionibus orbium coelestium, libri VI : Habes in hoc opere iam recens nato, & aedito, studiose lector, motus stellarum, tam fixarum, quàm erraticarum, cum ex ueteribus, tum etiam ex recentibus obseruationibus restitutos: & nouis insuper ac admirabilibus hypothesibus ornatos. Habes etiam tabulas expeditissimas, ex quibus eosdem ad quoduis tempus quàm facillime caculare poteris. Igitur eme, lege, fruere. [Line in Greek] (1543)](https://img.insideoutlibrary.com/img/200/ia-nicolaicopernici00cope-359-250.webp)
