30 



cC = 2/+ 3a + 



4/+ 2 a -+- 9 a g 



' 4/ 4- i a + £5 aa 



4/ -+-2 0-1-4900 



4/ -i- 2 a -h f fc. 

 (i 



4/-I- 60 -i- 900 



4/ -f- 6 a -)- 25,a« 



4/ -|- 6 a -h 49 a» 



■ ■> 4/-t- 6 a -i- eta. 



sD = 2/-i- 5a + 



4/+ loa-h 9aa 



4/ -h ioa-)-25aa 



4/+ 10 a + 49 a a 



4/+ loB-H «fC. 



etc. 

 §. 12. dciod si jam hic ponamus /=: 1 et a =: 1. 

 prodibit ipse casus a TJ'alUsio tiactatus ^ unde fractiones 

 continuae a Pf'allisio inventae, cum suis valoribus per qua- 

 dratLiram circuli expressis , erunt sequentes : 



FRACTIONES CONTINUAE WALLISIANAE. 



2 A=iH- ' 



2-1-9 



21 



2 4- 49 



oB=3H-l 



. -^ etc. = ^ — ^ , 



6 -1-9 



6 -+■ 49 



6 -\- etc. zz: 2q :=z tt , 



2 C =r 5 -f -— - 



I ,0 -4- 9 



ip -)- 49 



« >6 



o -+- etc. zzz — zz: — y 



