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# Title: [Johannis Wallis S. T. D. Geometriae Professoris Saviliani, in Celeberrima Academia Oxoniensi, De Algebra Tractatus; Historicus & Practicus. Anno 1685 Anglice editus; Nunc Auctus Latine. Cum variis Appendicibus; Partim prius editis Anglice, Partim nunc primum editis] Johannis Wallis S. T. D. Geometriæ Professoris Saviliani, in Celeberrima Academia Oxoniensi, De Algebra Tractatus; Historicus & Practicus. Anno 1685 Anglice editus; Nunc Auctus Latine. Cum variis Appendicibus; Partim prius editis Anglice, Partim nunc primum editis (shelfmarks Leibn. Marg. 100:1/2, Stück 2; Leibn. Marg. 100:1/2)
# Folio 202, page id 851708439:0226
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A Y C F B R A.
Vels POsito a = = e f b. Adeoque
eeco = 4b eec = 6bbec = 4bbbc = bbbB = + a aaa)
4beec-- 72 bb e c = T2 bbb e - 4bbbb = - q baaa C
ffec  2bffe - bbff - - fF a aC = C6C6.
adde +bddd =  ddda)
Fit ceco -6bb eC + 8bbb0 = + 50CC. Cujus radia, e = - a f B.
ffec + 2bffC = 3bbbb
addc + bbff
bddd
XXX. Aquatio aa a a = 4baaa - 5F a a = d a d a = + 555C.
Polico a = = e + b. Adeoque
ecco +4beec = 6bbec = 4bbbc = Bbbb = + aaaay
4be00 = 72 bbeC = +2. bbbe = 4 bbbb = - 4baaal = = cCCc.
ffec = 2bffe - bbff = - FFa aC
ad de - b d d d = - d d d a)
82
FIt CCCC =6BBCC =8bbBC = + cCC
c. Cujusractix, c = + a - b.
aade Lbbff
+bddd
Vel, Potito a = - e = b. Adeoque
eecc - 4Beec = 6bb ec = 4bbbc = bbbb = + aaaa)
= 4 becc = +2 bbCc -  +2bbbC - 4bbbb -  4 baaal
ffec + 2bFFe - bbff = - fF a aC = + 6666.
 adde - bddd - ddd a)
Fit eccc = 6bbec + 8bbbe = = cccC. Cujus radix e. = - a + b.
ffee + 2bffC  3bbbB
 ddde = bbff
F bddd
ZXXI. A quatio a a a a + 4 ba a a - ffa~ = +6C66.
POTito a = f e - b. Adeoque
cecc = aBeec. + 60bcC = 4bbbc = BBbB = F a a a a)
+ 4beec = 12bbec = +2bbbc - 4666b = + 4 baaa C = = CCCc.
ff ect 2bffC - bbfF = - ffa a)
Pit cece =6bbec + 8BbbC = = cccc. Cujus radix e =. + a + B.
FFec +2bff0 + 366bb
+66f5
XXXII. AquatiO, a 4aa - 4baa a - 5F4 a = + 0c06.
POTico a = F e = B. Adeoque
cece +4becc = 6bbec + 4bbBc = BBBb = =aaa4)
4be e0 - 12. bb eC = 12bbbe = 4bbbb = - 4 baaa = = CCC6.
(sec = 2bffe - bbff = = FFaa)
Fit cece =6bb CC = 8bBBC = FCC5C. Cujus radix e = = a - b.
f(e0= 26550 + 3bbbb
bb
Veh rotio a = - e + b. Adeoque
Cap. Lil.
Cd
2X
Potue
d