Analytic geometry, for technical schools and colleges (1897)
Lambert, Preston Albert, 1862-1925 · New York, Macmillan · leaf 83
tangent to y^ = 2px atThe transformation formulas be-come X = m + Xi + ?/i cos a, ?/ = n + ?/i sin a, and the transformed equa- rfl -|- /i.2 tion reduces to yi^ = 2 .ti, or yi~ ■= 2(p + 2 m)xi. 41. To determine a set of oblique axes, with the origin at the center, towhich when the ellipse is… … V rt2 + ft2 TRANSFOhMATIO.Y OF COORDINATES G9 Ilio problem requires thai the coefficient of Xij/i bo zero, hence tan a tan a. = - d- Tlie problem is indeterminate, since the etiualion between a and a admitsan infinite number of solutions. Let a and a in the figure represent onesolution, then (^+…
Geometry, Analytic
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