•»> 



¥$ ) 54 ( H8- 



noftrae progrefllonis fradtioncs in calculum introducamus, fit- 

 que r=j; a = *; (3=£; y = » ; £ = £etc. et cum fit 



ii * 



(3 — r " erit - — ideoque s a — b 



Per logarithmos ergo erit \l s = / b fjue / s = a l b ; porrd 

 11 s — l a-\-llb ideoque llb — lls — la, cuius formulae 

 ope ex datis s et a reperitur b ; fimilique modo erit llc — lls-lb 

 et lld — lls — lc et ita porro. 



§. 31. Illuftremus nunc cafum exemplo , fitque r — \ fu- 

 maturque a. — \\ erit s — 2 et a — a, vnde calculus ita fe ha- 

 bebit 



a lls— 9,4786098 



fubtr./«— o, 3010300 propterea quod a = o, 5000 

 ■ — __ 



llb — 9, 1775798 



lb—o y 1505150 hinc /(3 = 9, 8494.850 hinc 



= 0,70710 

 /// = 9,4786098 



lb~o, 1505150 



//^• = 9,3280948 



/c = o, 2128604 hinc /7 = 9,7871396 vnde 



7 = 0,61254 

 /// = 9,4786098 



//</=9, 2657494 



/^ — o, 1S43951 hinc /<$= 9, s 156049 crgo 



<5" = o, 65404 

 //j' = 9, 4786098 



1U~ 9,2942147 



/<? 



