Plane and solid analytic geometry; an elementary textbook (1904)
Ashton, Charles Hamilton, 1866-1936 · New York, C. Scribner's Sons · leaf 113
ince its centre is at the point I -J, 2l J,and it passes through the origin. When, as in the above problem, we have to determinethe locus of a point situated on a moving line whichrevolves about some fixed point in it, polar coordinatesare often convenient. The fixed point is taken as thepole, and… … ;r r\ which pass through a fixed point, (xv t^), not on thecircle. Ch. VIII, §61] LOCI 97 Le1 J\ be a fixed point through which the secant PXPSpasses, and let it be required to find the locus of _P, themiddle point of P2Ps- Transform the equation of thecircle to polar coordinates, with P1 as…
Geometry, Analytic
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