IMAGmARUS CONSTRFEmiS, i8i 



-TtA,-4-n~'/+^-/>y(ip'-^)]-y[-^/+^+pV(i/-^)]].V[-^/i-^+/>y('P*-^)] 



h. e. x'--lp''\-q-^py{},p'-q) 



- 'KX=:-[-ip'-hq-ipy[lp''q)](:-y[{-\p'-^qy-pW-^)^ 

 -\-q— -^q l feu -y\\p"-p'q-Vq-',p*+fq) 



t feu —q 



h. c.x"—-',p'+q^py\\p'~q) T = o. 



- TO-+ip -^-py (^/ -q)-q ^ 



-\-q 7=: -\-q 3 



Proinde etiitm in arca ininore (3 res eodem redit , ac fi , 

 loco aeqimtionis definientis .r'-7rx-i-^ — o , adhiberetur 

 aequatio drfiniens -x'^ -\-px — q — o. Eft enim 



~x'—-\p'^q-\-pV{^''-q) ^—o 



^p-x- -pxz^ P---\:^-y[\f-q)\--\-'^p''-py{^p'-q\ 



-q— -q j 



§. 12. Denique {Fig. 3.) pro Dto 5" , ipfi nto p oppofito , erit 

 Dtum maius^y— i-=Pi.PK=-PI.PK=:-[|p-Hy(^p'-^)][ipH-y(i/-^)] 



^-W-q-^py{^p''-q)'\-''^^-\-rpy{\f-q)] 



eius radix x~-y[-\p^--\-q-py{\p^-q)'\ 



jtem Dtum minus 8^'—?q.VK=z-Vq.?K=-[\p-y{\p'-q)\lp-y[^p'-q)] 



=^-np'-q-py{lp'-q)]=-'.p'-i-q-^py{lp'-q)] 

 eius radix xzr-V^-lp^-^-q-^-pV^Lp^-q)] 



adeoque fumma radicum, quam breuitatis gratia pouo 11:7:, fed contrario fi^o 



affeaa=-7rir-|-y[^^V^-/)y('/)^-^)]-i-y[-;/>M--/-|-py(-:pV^)] 

 Eft ergo pro Dto maiore <J~ 



FJg. 3- 



2 3 



a; ,=: 



