Plane and solid analytic geometry; an elementary textbook (1901)
Ashton, Charles H. (Charles Hamilton), 1866- · New York, C. Scribner's sons · leaf 82
orial angleand is represented by 0. The usual convention in regardto angles will be followed, — the anti-clockwise direction of rotation being con-sidered positive. Thesetwo quantities are calledthe polar coordinates ofthe point, and are writtenO, 6). The line OA iscalled the initial line, andthe… … Fig. 40. 64 ANALYTIC GEOMETRY [Ch. V, § 42 will be an indefinite number of angles which have thesame terminal line. If 6 is restricted to values between— 2 it and 2 7r, any point may be determined by four setsof coordinates. If the polar coordinates of the point P in Fig. 40are (p, 0), the same…
Geometry, Analytic
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