Haswell's engineers' and mechanics' pocket-book .. (1844)
Haswell, Chas. H. (Charles Haynes), 1809-1907 · New York, Harper & brothers · leaf 63
Make A B the transverse diameter, and C D, perpendicular to it,the conjugate. Bisect A B in 0, and from 0, with the radius O C or 0 D, de-scribe the circle D / c F, cutting A B produced in F and /, whichpoints will be the foci. In A B produced take any number of points, n n, &c., and fromF and… … ^ To describe hyperbolas by another metliod, see Gregorys Mathematics, p. 160. 56 CONIC SECTIONS. To find the length of the Ordinate, E F, of an Ellipse, the Transverse, AB, Conjugate, C D, and Abscissa, A F and F B, heing known—fig. 3. Rule.—As the transverse diameter is to the conjugate, so is…
Engineering · Mechanical engineering
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