) 78 C ^c 



quintam figuram irrepit. Siimantur tria membra 



£ — ^ =r 0,^1.054^4 



5-1 5 - -5 



i5-_± 371 



25 



vbi error dcmum in feptima figura fe manifcdat. 



§. 24. Ob hiinc infigncm vfum , qui fc practer 

 expedationcm obtulit, opcrae pretium erit talem inuerti- 

 gntioncm in genere expedire^ atquc in hunc fincm vtatur 

 fonnula intcr littcras 7n ct n fupra §. 20. data , vbi fit 



7 n -+- m 



/ — — zz 2 ;;; 



« — in. 



n — ;;; 111 



2fi-4.inm 



Sn—9 m m 



^n—\6m m 

 9;;— etc. 



vnde fi capiamus tantum primum mcmbrum, fiet propc- 

 modum / "^ -+- "■ — i^ ■ fumtis autcm binis prioribus membris 



n —771 n ' ' 



2w , eritiam propius / '^rhJl — """' --: fumtis ve- 



n — m m 

 3 n 

 10 tribus mcmbris crit 



/ " rtHL — zm 

 n — m 



n — m m 



3 ;; — 4 ;;/ m 

 5 n 



loninrt — » m* 



§. 25. 



