Lectures on fundamental concepts of algebra and geometry (1911)
Young, John Wesley, 1879-1932, Denton, William Wells, Mitchell, Ulysses Grant · New York : Macmillan · leaf 31
Fig. 1 18 CONCEPTS OF ALGEBRA AND GEOMETRY obtained in the following way. Through the given point Pdraw the diameter DD, also a line perpendicular to itthrough P, which will intersect the bounding circle in a … Fio. 2 pair of points, say T and T (Fig. 2). The tangents to thecircle at T and T will intersect upon the diameter, at apoint wliich we will call P. Any circle through P and Pwill cut the given sphere orthogonally; and, conversely, anycircle cutting the given circle orthogonally and passing…
Algebra · Geometry
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