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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 386, page id 851708439:0410
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86
L G F B R A.
Exemplum VII. Fsto C. F. Byperbola; cujus Asymptota AD AF; e angulus
AD rectus: Epsique D a perpendiculares ac libilui BCn DL. LOS AB = a,
BC = b, es area BCF D = Z. Frit BD
ecc
Cit
ab. 24 a B 220 aB
HOnC hujUS ALILIMACLCA PLOSTCIHIOMIS, L9 27 39 49 5, etc.
Arque hine; Dato Locarithmo, Envenitur Numerus cui convenit.
Obi numerales Coesticientes denominatorum, oriuntur d continua mulciplica.
ExempluM VYIT. Sit V DF (qux dicitur) Linea
Duadratria. Cujus Velcex V. Centrum A. Semidia.
meter circuli cui conrettu, A. Hi. Ec Angulus V AH re
ctus. Sitque DB perpendicularis ad libitum, ab VF
CUEVa, a AF. EFD Prancens, occurrens ipti A V
inT. Poliris AV = a. AB = v. Erit BD,
EL Arca AV
E Lus VD = a
X
225 a 6615 a
c
604. 1
ec
FF contra: Daris BD, aut
7 aut area AVDB, aut
Arcur D; invenietur X = AB;
relolrendo Afectas illas A qua-
tiOnCS.
Exemplum IX. Sit AFB Spha-
rocides, (facta convertione FI.
lipseos A F. D circa axem AB;
4 43
27aa 2025 a 803025 a 
B quam sebent quatuor plana; nui-
cum AB pel adeM; DC cidem
paralela, CDC aseu Vccato aut alg ilos rectos; e PCc iph parallela. Positis, re.
cta CD = a CF = e
AC
y. Ti C CdPBarderdis seementum
quatuor pranto inter etan C,
2C X y