vnde ob r—p — nq fiet 



r — A ?i (4. — 4- f.v H- ?« /;; 4- c ;«'}. 



f. i^, His igitiir tribus valoribus inuentis niimc- 

 ri quaefiti .v, j', z ita ex iis determinantur , vt fit 



X — pp-\-qq — rrjj=2pr', z ziz 2 q r» 

 Praeterea vero erit 



V — pp-qq^rr; Q_z=i2qrK, 

 cxiftente 



R — 2 ?!ip p — tJifi p q "{- (1 — fi fi) q q. 



§. 15. Vnicum excmplum euoluamus, vt pateat, 

 num hinc minores numcri fint prodituri quam antc. Su- 

 mamus igitur a — 2 et b — 1 , fietque 



n — l et w/ — +; i j hincque fiet 



p-lAi^±l-'^^'^i ^ = A(4±iO--=iF\V) 

 fiue 



pz:zlA{;±ll) ct q-Ai-U±V.)' 

 Sumamus A~i28, fietque 



P = 3 (56 ± 35} ? = 8 (-<Ji ±35}, 

 hincque 



r=z/>--:^ = 3 (178 T 35. 

 Valeat fignum fuperius, qiioniam hoc cafu numeri reful* 

 tantes per 13 deprimi poflunt , quo fado reperitur: 



p—31 — ZJ- ; ^ = -2.8 — —i6i r::=3.ii— 33^ 

 vnde colligimus: 



x~- 392; yzz i38<J.i z — -- J0$6, 



E 3 qut 



