Mathematics for engineering students, Analytical geometry and calculus (1907)
Keller, S. S. (Samuel Smith), 1867-1923, Knox, W. F., [from old catalog] joint author · New York : D. Van Nostrand company · leaf 147
ent to the hyperbola16 y2 — 9 x2 = 144 at the point (V6, 5). 25. At what angle dothe curves in Ex. 22 inter-sect? i3» Analytical Geometry. CONSTRUCTION OF THE HYPERBOLA. Art. ioo. The definition of the hyperbola suggests amethod of mechanical construction similar to that for theellipse. Since the… … Fig. 52- In Fig. 52, let a straight edge of length / + 2 a, bepivoted at F, and one end of a string of length I be fastenedto its free end, N, and attached to the focus F, at its otherend. A pencil pressed against the straight edge, keeping thestring stretched (as at P), will describe the right…
Geometry, Analytic · Calculus
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