Snyder, Virgil, 1869-1950, Sisam, Charles Herschel, b. 1879 · New York : H. Holt and Company · leaf 83
If b = c, the hyperboloid of two sheets is the surface of revolu-tion obtained by revolving the hyperbola - ^ = 1, z = 0 62 about its transverse axis. 59. The imaginary ellipsoid. The surface defined by the equa-tion x^ y^ z^ _ _^ a^ b^ c^ is called an imaginary ellipsoid. Since the sum of the…
Geometry, Analytic
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