Laplace, Pierre Simon, marquis de, 1749-1827 · Boston, Hillard, Gray, Little, and Wilkins · leaf 709
675 SECOND METHOD OF APPROXIMATION. II. viii. § 67.] x = r . cos. v ; y — r . sin. v ; z = r s ; [1243] hence it is easy to deduce* … * (848) From the equations [1243] we obtain r — tang, v = - , s = • This value of r §ives (d r\ x r.cos.v fdr\ V r.sin. v . /dr\ ï~r)=w- fp=— -=cos->’; — =sm-*’; W=0 [1243a] ?/ C? -y xdy_jLdx, sul3 stitiitiüg a?, y, [1243], and The differential of tang, v = - is - — — : x cos.2 v d y . cos. v — d x…
Celestial mechanics · Tides · Capillarity
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
