ijó Atti 



2y 

 Multiplica quantiratem m'p—hn^q in m' q -^ ti' p \ orictur 



tibi produclum m' — h «'X^ q ~-¥ ni' ti {jutp"- -i-nq): produftum 



itidem j!»? -+ q^X m n -f p^ q^ {ni q -¥ tip) exurget » fi ducas 

 quantum m q^—hiip' in quantum mp'—^nq^ ^ unde tandem 

 eliciemus 



IjM ni-^ìi^^ft — ztuy^-^r'^r^i' — 4 r^tiy — 4 fiiy' — t- i 6 u'y^ 



zu 



IfJ p^-^q'^=rr — zru^y — tVf't^ — 4;- u y — ■\iuy' -+ 1 6 li y' > 



^f 



quas formulas peculiaribus fymbolis |X| |]T| adnotare volui; 

 has enim in fequentibus perfaepe advocabimus. 



XI. Inllituatur modo comparatio terniinorum canonìcae 

 cum analogis terminis r^yò/zif «^«f . Succeffivae terminorum col- 

 lationes quatuor aequationes fuppeditant 



1 *. y—Jru = a 

 2». i- — f / = 5 



3*. — rt{y-^-u) -f « — yX VrY — ^r tiy — ^iuf-+i6u^y^ 



uy 



■y — uy~¥ii = C 



