^7© 0?USCULA. 
4- 4 ^"+4 4 JK r=o, A' + 4ii'"'+B= • . Dematur 
quinta cx quarta , & orietur 6* i -Jr l A'-^ 5 B = o ; hxc 
dematur a tertia, & proveniet 7." g 2 A -h ii B = © , 
qu3c fubducatur a fecunda ut fiat S,* ^ A-h A — ij B =z 0 y 
qux deduda a prima dat 9.^'" 16 j5 =: y , five 5= ~ r . In 
ultima operationc dum fubtrahitur o6iava a prima , abeunt 
duac A ^ A\ quod indicat aliquid ineffc indeterminati . Jgi« 
tur una ex fpeciebus A^ A\ A \ A'\ A'' pro libito deter- 
minari poteft. Fiat A' =0, & proveniet A = ^B^ 
A= -H B,A = o, A' - 1b,A' '-~~^B, filc fubftitu' 
to valore B , A zz: -1- r , A ^ , A^ o,A'=^ , 
A''' — — -— , His autem valoribus fubftitutis in formulafup- 
pofita 5 obtinebis fummatoriam quaefitam . 
XVI. Satis de formulis j , S (p .Gc.^cp , 
m-n 
y dap . .Gh.^®,ad quas reducam formulas magis 
late pat€ntesj((j)^ //(|) ,S c. ^9 ,Cc,^(p5yq:^^(^.Sh. 
Ch. ^^p. Paullatim procedens incipiam a formulis circulari- 
bus y fjpPd (p, Sc,q(p,y(v^d(p^Cc,q(^. Quamobrem accipio 
differentiam duarum formularum y(p^Sc,q(s^,ydc^^Cc»q<!^y 
& translatis opportune terminis invenio y (p^ d cp S c , a[ 
-^y (p^ dpQc.q (p:=zDy (p^ S c . q Cp — yy (pP-'d(p S C . f , & 
- ~-y(p^ d(p Sc.q(p-^y-y(p^d(pCc,q(p~ Dy Cp^ C C . q ^ 
— ~ry ^^'^ d (p C c . q (p . Secundam multiplicatam per y demc 
a prima duila in g; tum fecundam muUipIicatam per ^ ad- 
de priiTsc dudx in ^ , & orientur dux 
^~^y (p^^(pSc.q:p=:g DyfSc .q (p—^g y f''d OpSc.qCp 
ggl^q - ^ C C. ^ (f-^i' qy (piyj CC. qCp 
y (p^ d(pCc.q(p:=q D y (p^ S Z . q Ip—p q y '^' d (ph C. q (p 
^ -^g '^^ C c. f 9— / qy ^^~'d 9.S c.qop 
Fada 
