SEPTEM LENTIVM. 



2<J5 



I. AEr^=a+4!|ni. AE: 



II. AE-^'a-h^'lV. AE: 



m 



a + 7^ 



V. AEr^^a+ioidig. 



VI. AEr:^'ct4-i2dig. 



Spccics fecundaria VI lentibus conftans. 



64.. Fadis iisdem denominationibus , primo 

 crit fcmidiiimeter campi apparentis (P~^ ^'/;q ^-, j , re- 

 liquae \ero menfurae; 

 Lentis diCl. fbci. femid. aoert. 



in A 



in B 



in C 



m U 



ct ; 



«1 -f- i: (^ i 



kz 



s{k— 1) 



D, 3(fe— iJW 



Intcruallum 

 AB — a 



BC— ^a 



CD=:(^-i)2j 





m t , . ,t:^ 



DE=f# 

 E i" =" u Dif;. foci E F :zz lf^^\] z 



:(;•*:— 1} 



F/~udift.tbd FO— ,-g=^ s 



Hypoth. L ;;/ > c\5 f Kyp. II. ?^ > ^ 



k—i:, z-2; Aa-^IU AB=r:a'/:-3- ^— ;.; Aa-=z?:,;^ ABTza. 

 p^ = ^,a^ B^z;.^„- BC = „iap^ =: -„^,a;Bb-l.hBC-^,o, 

 r-~a;C,-:,; CD = 2 !/^ :=^a^C.-/n CD = 3^ 

 p''^— 2; D^r:; DEni p''''/ =1 i ; D^^l^ DE=i 



p''''—2; Ee-l:, E¥-i ip''''—i; E^=:f.^EF=i 



p^ -^ I 



¥f-u ^o-\ 'p 



F/r',- FOz:? 



(pz^^min.AF^i^^a+^jin-po^f-^^— ^'^ min- AF— ^4^'a-f-5 



Tom.XIL Nou.Comm. 



LI 



Hyp. 



