BERNOVLLIAN. INVOLVENTIVM. 131 



peripheriam circuli , cuius diameter eft iri, refe- 

 rentis definiri pofle demonftraui , horum numero- 

 rum nexum multo clarius exhibuit. Si enim has 

 fummas fequenti modo defignamus : 



i4-^4-j4-H74-i-54-l- etc. = B Ti* 

 iH-^ + 3T H- ;-6 4- j^ -+- etc. - C TT^ 



1 4-;-to-f- ~-V-^o-l-hs-i- etc. = Et'* 



primum per hos numeros A, B, C, D etc. prae- 

 cedentes S(, $B, €, S) etc. ita determinari oftendi 

 \t fit : 





B 



e — Iil:!; -^ E 

 ctc. 



ideoque 



A=r^-1^ 



I 



B — "■' 



. 2. 3 

 ^95 







Q 



3. 3. 4 



5 





T) — 



2. 3 . < 





7 



— r 

 E — 



2. 3 . 

 2« ® 



■ . . * 



F — - 



2. 3 . 



2'^ 2 





II 





2. 3 . 





13 



etc. 



3. Porro autem pro litterarum A, B, C, D 

 etc. progreflione duplicem obferuaui legem , cuius 

 ope quamlibet per praecedentes determinari licet. 

 Prior lex quemlibet terminum per flngulos praece- 

 dentium ita definit , -vt fit 



R a A=: 



i.i.i 



