Cyclomathesis : or, An easy introduction to the several branches of the mathematics; being principally designed for the instruction of young students, before they enter upon the more abtruse and difficult parts thereof (1763)
Emerson, William, 1701-1782, Adams, Charles Francis, 1807-1886, former owner. BRL, Adams, John Quincy, 1767-1848, former owner. BRL, Boston Public Library) John Adams Library BRL · London : Printed for J. Nourse ... · leaf 250
s 5 fluent of — — zz —rr X 2.302 log,x; but when the area is o, x zz r, therefore the correct fluent zz 2.30258 x log. —.. x Otherwife thus. Since x: y : : r 1 t9 therefore xx :yy : : rr: ?t> and xx : xx+yy (rr) : : rr : /r+//. Whence ## xrr+// =z r+, in Fluxions, 2*x x rr + //> + 2// xa:# 1= o,… … Miscellanies ¥L.lK.pa.2j4 Art. XL FIGURE OF SINES, &c. 235 Z2f= rX ^dfz zzl X rf. But iL a 2LF* f fy y y t *u r . rrf — , \ whence/& zr y - ;.;., And (by Form oth, Fluxions,) the fluent of -7- - V—rr+ff I 2.30258 log. \/ff+ s/^rr+Jf. But when thearea is zz o, /zz r; therefore the fluent corrected…
Mathematics
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