Snyder, Virgil, 1869-1950, Sisam, Charles Herschel, b. 1879 · New York : H. Holt and Company · leaf 81
f I A; I < a, the transverse axis of this hyperbola is 2 = 0, .-c = A:.The section on the plane x = a consists of the two lines _-^ 7-0-3 b 0, a; = a; ^ = 0, a; = a. J -rz: c be The section on the plane x = — a consists of the lines | + ? = 0, .r = -a; f-? = 0, x = -a.be be If I k I > a, the… … Fig. 26.
Geometry, Analytic
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