Analytic geometry, for technical schools and colleges (1897)
Lambert, Preston Albert, 1862-1925 · New York, Macmillan · leaf 171
nding points 2, 2in coincidence. Join thepoint of intersection 0 ofthe lines through 1,1 and3, 3 with 2. Take the3 points of intersection oflines through 0 with mmand 7in as correspondingpoints, and a one-to-one correspondence is established betweenthe points of the ranges mm, nn, which are… … LINE COORDINATES 157 through the points of intersection of the corresponding rays2, 2 and 3, 3, and taking rays from m and 7i to any point of 00as corresponding rays, a one-to-one correspondence is estalvlished between the rays of the two pencils, and the pencils areprojective. Art. 81. — Coxic…
Geometry, Analytic
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