Laplace, Pierre Simon, marquis de, 1749-1827 · Boston, Hillard, Gray, Little, and Wilkins · leaf 47
13 PRESSURE AND EQUILIBRIUM. I. i. § 3.] the preceding equation : therefore the equation (6) takes place also in this case, provided that one of the three variations Sx, 5 y , Sz, be exterminated by means of the equation of the surface ; but then the equation (6) which, in … transposing the terms b, c, of the first members, and putting b — A. a — A!, c — B.a — B', c — C ,b = C give the general equations of a right line y — Ax-\-A!', z = BxJrB' ; z=.Cy-\-C', [196"] which, like [196'] are equivalent to two distinct equations, and any two of the co-ordinates, as y, z, are…
Celestial mechanics · Tides · Capillarity
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