Smart, Edward Howard · London : Macmillian and Co. · leaf 155
Fig. 64a. Fig, 646. The truth of the latter statement is manifest on examiningFig. 56a. For any pair of conjugate lines through C withrespect to the circle will project into conjugate diameters ofthe hyperbola. Drawing any line through C, the conjugateline is the line joining C to its pole; and…
Geometry, Projective
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