The elements of plane analytic geometry. A text-book including numerous examples and applications, and especially designed for beginners (1903)
Briggs, George R. (George Russell), b. 1853, Bôcher, Maxime, 1867-1918 · New York, J. Wiley & sons; [etc., etc.] · leaf 126
esults may,therefore, be obtained from the other by changing the sign of ^^,a method which will enable us to infer many properties of thehyperbola from the corresponding properties of the ellipse, orvice versa. 65. In finding the equation ofXheparabo/a, we will take the fixedstraight line, called… … THE CONIC SECTIONS. IIQ represent the constant distance of the iooM^from the directrix,the coordinates of F are (w, o). The equation which expresses the definition of the locus is FP ^ EP. , . (i) By § lo FP ^ ^/{x - my + /,Also FP = O M ^x. Substituting these values in (i), we have, after…
Geometry, Analytic -- Plane
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