Inside Out Library
A first course in analytical geometry (1905)
Schmall, Charles Nelson. [from old catalog] · New York, D. Van Nostrand company · leaf 327
Fig. 169. The Cone. 1- a- • -b^ ci = 0. 310 ANALYTICAL GEOMETRY … Fig. 170.The Hypeyboloid and its asymptotic Cone.Geometry, Analytic
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