= (s) 



Ciiin nunc in genere fit 



r. r n — r Ci--v^-"-^^ _ T_ Ci--v)" 

 fdxCi — x/ — C — — , 



pofito .V =: I, qiicmadmodum nfTumfimus, erit 



/9-v(i-.v)-^:=^-^^. 

 Hinc igitiir fingulis integrdibus ccllcctis rcperietur 



yj^x = — i — l — ^ — ] — l— etc, 

 vnde per valores antc euolutos iict 



/jdx = \-\~^-r-h-^j^-h etc. 

 quiic feries vtiqiie parum ell: conuergens. 

 ' 



Euolutio quarta. 



§. 9, Ciim habeamus y — ^;^I^j)7/ •> qucmadmodum 

 ante partcm / .v in fcricm infinitam rcfoinimus, ita nunc vi- 

 cidim iplhm quanriratcm in fcricm pcr logarithmos ipfiua x 

 proccdcntcm cuohumuis. Quia cuim elt A-~e'^, erit 



.V =: I -f- / .V -j- l (/ .v)^- -I- • (/ .v)' -}- -l, (/ xy -i- e tc. 

 vbi loco / .V brcuitatis ergo fcribamus u^ atque hanc fcriem 

 tanrum in numcratorcm introducamus, vt fiat 



— l u u — l u' \ u' — -A W ^ . 



y— " li — etc, fuie 



« (I — .v; 



— lu — \ u u — l~, u' il^ u* 



X 



idcoquc 



j — — ctc, 



I /■ix iZ X I» 







d x\lx\* 



etc 



§• I 



