2 9 



cefsive fcribamus numeros o f + f, 



2 > ~±L 3 •> etc. valores ip- 

 fius S cam fuis. differen ti is , quorum ufum jam faepius es- 

 plicavimus, ita fe habebunt : 



S | Diff. | 



o 



-+- 2 



±3 

 ±4 

 etc. 



26bb 

 13(2-^ 6) (5 ^26) 

 13 (4- ± 6) (10 ± 26) 



13 (tfn- b) (15 zt 2 ^) 



13.(8 ± 6) (20^ 20) 



etc. 



130+ 1 1706 



390 h- 1 1766 



650 Hr 1 1 7 66 



1910 rf; 117 66 



etc. 



quae differentiae continuo crefcunt augmento conftanti s6b' 9 

 unde facile, quousque libuerit, continuabuntur \ ubi autem 

 probe notetur, fubtractionem differentiaium fieri debere a 

 numero aa — 26 66. 



Casus II. 

 quo jx = 20 et v zz 2, 



Jf. 48. Hic igitur eiit j-^6=:2op ety — 6zz:2g 

 unde, cum hinc fiat 6 — iop — g, fumto p~s fiet 

 qzzricy — 6, et aequatio refolvenda erit: aa — i$pq -~ xx 

 ,live aa ' — ias(ios — 6) zz: xx. Pofito igitur brev.gr. 

 i3<? (ioj.— 6) = S, valores ipfius S, prouti s fuerit vel o, 

 vel i, vel 2, vel 3, erunt fequentes : 



s I S I - Diff. | 











-H I- 



I 3 (l ± 6) 



± 2 



26 (20 +6) 



± 3. 



39 (30 ±6) 



±4 



52 (40 ± b) 



etc. 



etC 



130 ^ 13 6 

 390 ±136 

 650 hh 13 6 

 9 . 1 o nr 136 



etc. 



ubi 



