Bailey, Frederick H. (Frederick Harold), 1865- · Boston, London, Ginn & Co. · leaf 340
y( -T^ + ^T^ )--2 = l•If y:=0, the equation of the section made by the planeXOZ is ^^ + ~b^ J ~ ^ ~ EQUATIONS OF SECOND DEGREE. 325 or V F^ which is the equation of au hyperbola. But as 0 is given different values, the plane XOZ becomesany plane through 01, and, therefore, all sections of… … Fig. 20. If b =: a, the hyperboloid becomes one of revolution, OZbeing the axis of revolution, and its equation is x + y- _L=:i^ III. y b- 326 SOLID ANALYTIC GEOMETRY. If X = 0, the equation of the section made by the planeYOZ is f,_; H—^ = — 1, so that this section is imaginary.If X = Xi, the…
Geometry, Analytic
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