FLVIDORVM LINEARI. 199 



quae feries vtique valde conuergit. Hinc ergo iu- 



vento valore Y erit : 



(Xziil^^^r (B^^-i-(X- 2)^4-(X - i>Xi - YHBrr+f)y 



vbl eft^z:(X-2)('-Y^"") et xi:(Bt'f+^)Y^-Br^ 



Cum iam celeritas maxima fit : 



fX-ofx^.).;., z= ( X - 2 ) C ^ + A' ) , hic locus definitur 



hac aequatione 



X— 2 



Y X — I B cc-^e_ 



•BccH-(X— 2;6-|-(X — i)e 



et pofito 



Bcc-4,(x~o&- 4- (X-o_g ^p fit Y^"'— F ^-^-gX^ 



Bcc-4-e ' "~ ■" 



vnde celeritas erit maxiiria vbi 



Cum nunc porro fit 



^Aziii^p^ — (B^<r-4-^)(E(i - Y)-y) 

 erit pro tempore 



dtzz -^^^"^'^_ -Y^-VYV(X-2)(B.v+^ ) 



2y(X-i)g(E(i-YHX-i)(i-Y^^) 

 ct fido Y — ti''""^ fit 



-^«V(X-i)(X-2)(Brr-|-f) 



dtzz 



2yg(E-X+ I 4-(X- i)«-E?<'^"-') 



P p 2 Verum 



