t8o Opuscula. 
dit S.'^ 14 A-{~i^ A ~ 2 Ex o6lava addita primx multipli- 
catac per 13 fluit 9.^ 40^=2 ex qua regrediendo hujuf- 
I I I 
modi valores eruuntur » A = — r, A = -—r , A' = — y , 
I I ^° 5 
A'" = — — r A''' — — quibus valoribus fubftitutis obti- 
10 ' 20 ^ 
netur fumma quacGta . 
XXIII. Nihil diverfa eft methodus in finibus & cofinibus 
hyperbolicisj ubi non habeantur cafus excepti. Etenim fuppona- 
m—n " 
tur difFerentialis ^ //q? . S h.^ Q) . Ch.f fummatoria elTe 
^Aish.^/p , C h . q A" b h (jp &c» 
Sy o/-^d (0 ,{ A :> h. q -^ASh.qo .Ch.q(p 
+ " S h . ^ 03 , C h . f + Sh .qCD . C h . ^ 9 &c« 
Hujus fumatur difFerentia , & deleris terminis,qui a contra- 
lietate fignorum deftruuntur, comparetur cum propofita , & 
per aequationes, qu3e obtinenrur , determmenrur valores , ^ , 
A\i ./4' ' &c . Exempla praxim cisriorem cfricient. 
Exeniplum primum . Fofita f=.iyq~i,g — — inve- 
2 
.2 
Siienda fit fummatoria differentialis ycpdcp .S h . 9 -f- C h . 9 
2 ■ 2 
y d (p . {S h .(p -i- iSh.^.Ch.^iH- Ch.9 , Quoniam 
hic non habetur cafus exceptus, fupponamus ejus fumfnato- 
riam effe 
y(p .{ASh.cp H-^'Sh.9.Ch.9+^"Ch.a3 
— SyfI(p.{A S h . 9 S h . 9 . C h . 9 -hA' C h .9 
Capiatur differentia , & termini, qui eiiduntur ex contrarie- 
tate fignorum , neghgantur 
) —A Sh.9 + — A Sh . (D .Ch .cp H ^Ch.9 
ir 4- 2 ^ S h . 9. C h . 9 + Ch.9 
( -h A sTT. 9 2 ^ ' S h . a: . C h . 9 
Comparatio cum propofira tres scquationes prabet, nimirum 
~A-\-A'-r, 2.^ 1 A~{^ ^ A A' - 2 r , A j A' - r. 
Du- 
