Elements of analytical geometry and the differential and integral calculus (1856)
Robinson, Horatio N. (Horatio Nelson), 1806-1867 · Cincinnati : J. Ernst · leaf 88
According to these definitions F, F, arethe foci, C the center of the hyperbola, A^A, the given line, and DD a diameter. The parameter is a double ordinate, pass-ing through the focus. The principal par-ameter passes through the focus at rightangles to the axis. The definition of this curve…
Geometry, Analytic · Calculus
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