C R P R I S. 2^9 



pofito breuitatis gnuia 



P — A cof. ■>!-{- Bcof.<^ +-'DcoC^coCy\-\~ECm.^Xm.y\ 



Q^— A cof. ^Hhcol. -v) -h D 



eam rcdit;o sd hanc formam : 



d|j^2il-hilLlIl*i P -Ha-f- v(pp— ga^ vfp-;-Q : ) 



d?jm7T— ^iy i.i" — P— -a-i-VCPP — ii ) — VCf- — i) 



Tum vero pofito tang. ^ «^ =z/) , et tang.s'/) — ^ , vnde 



cum fit j—^ — ^^-f et /„}yj — ~ , nollra aequatio relbl- 

 venda erit 



(jd^ — pdiji — • '■^ P— a* 

 37. At pofito tang ^<^ — p et tang. ^ >! r: ^, eric: 

 fin.<^ = v-I^Iyp i co(.<^ =: ;~^^J ^ (in.^ir .^j. cof. -yiz ,'^. 

 Qiure cum fit Ph-Q_— ( A -+- B) cof. ^ -\~ col. >}) 

 -h- T>\ I -f- col. <^ col v]) -f- Jb riii, ^fin. •>]! 

 fietr 



Dcinde quia P-Q_=(.A-B)(col.v]-cor.^;-D(i-cor^cor.>i) 



-i-Efiu.^fin.-vii 

 fiet 



p __ ^ ; (A — B}(pf> — q'?) — iT)(pp-i-q q^-^ i^E pq 



His ergo valoribus introdudis , noltra aequatio refoluen* 

 da erir 



qdp — pdq ^ (a— 3j tpp —,; .j; — j;pp-t-.j ,;)-(- 2 £p<7 



quam^ faciie patet ad (eparationem vu-iabilium prducJ' 

 p (f; , cun pofterioris membri numeraror fit fJindio 

 ipiius pq^ in denoiiiuatore autem quantitates p tt q 

 "vbique. dua^ dimenfiones complcant. 



E f 3. 3.8. 



