^(^4 DE PRINCIPIIS 



Coroll. 2. 



107. Si ad calculum contrahendum panamust 

 (i^)-A;{|3)=Di(l4)^G 



(li)^B ; (^-|)=E ; (li)=H 



<?|) = C; (i|)=F; (1^)=! 

 magis perfpicua euadet haec forma : 

 KzrABC4-DEF4-GHI-AEI-.BFG-CDH. 



CorolL 2' 



108. His porra iisdem adhibendis ligMis ob* 

 tisiebimus 



j-v- ttfBC— EI)->-e(CI^CD)-4-V(DE--BGy 



IC 

 j Y a(EP — CH)-f.g(AC--PG)H-'y(CH— AE| 



^2 «(HI«»BF)-f-€(DF— An-f-^VCAB — DH» 



Coroll, 4, 



lo^r» Quo h^e formulae magis contrahantur , 

 qnandoquidem carum amplilTimus erit vfus ponamus 

 |orro : 



BC-EI=:5(;GI~CD:i:JD,DE-BGzi6 

 AC-FG:i:S3;GH-AE=:S;EF~CH = ^ 

 AB-DHz:C>HI-BF=z5jDF-AI :z:5 



Yt 



