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# Title: [Johannis Wallisii SS. Th. D. Geometriae Professoris Saviliani Oxoniae, Tractatus Duo] Johannis Wallisii SS. Th. D. Geometriæ Professoris Saviliani Oxoniæ, Tractatus Duo (shelfmarks Leibn. Marg. 84:1, Stück 2; Leibn. Marg. 84:1)
# Folio 81, page id 826605435:0101
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2
N
D. F C1500+L.
eancummodo ue ab Flobbio prolatam, uc insussicientem improba
bam: Propolicionem iplam, ubi illam examinaveram, veram de-
Prehendi. Pace
Calculum, quem ille cocum omierie, Fundamenta cradidisse
concencus, nos inceorum extibuimus, usque ad catum illum quem
ipse ex omnibus selegerat, nempe de cenero gravicatis semisolidi
semiconvertione semicreloidis circa basin delcripri, (e quidem
Tolidi inceori ejusdem conrersione circa arem Facti.) Pucaveram
etiam ad reliquos irem casus (prius quam rem opera absolverinc)
calculum perduxisse; cum Palcem qui ex 565, 66, collaris sup-
plendus elt. Scd cum incerea cemporis prodierie Decconvilii
cractatus, nihil deinceps addendum censui; ne iplius vicula arasse
videar: Adeoque prouc Mense Marcio COnCcripEuS CFAL, aEque ad
Hlonoratis. Vicecom: Brounter Ctacim transmillus, eodem plane
Racu in publicu jam emissum eractacum habes. Poruissem quidem
prolixius multo, et masis ad pompam, hoc cocum opus perduxisse,
quod  crronibus Forlan ex rebushisce minus exercitacis fuissee
oratius, si per Detinicionum, Lenimacum, Problematum, Theore-
macum, Scholiorum solennicares incedere, e longo apparatu
lineares ubique demonstrationes adornare rellem: Sed cibi, credo,
non minus placebie concinna brevicas, e in paucis mulcas qui,
vel digico ad Fonces incentomonicus, demonstracionis vim suc
cincte cradicam non minus alsequeris, quam (i canca esser solenni-
eace in longum procracta. Sicubi vero in mulciplici calculo (quod
omnino elt possibile) numerum pro numero positum depretien-
des, id indicare non graraberis e condonare. Reque BXC PuINE
guxe cum de IIlius cum de Noltro cractatu monisse visum CraE.
Sed, priusquam Cycloidem penitus dimirram; non insratum
tibi Fore credo si magnam illius cum Cissoide convenienciam
Oltend.M.)
Propoluisti non ica pridem de Cissoide proxoluionem pere. De Cissoide.
lognncem; Nempe in expolica linen Cistoide, C. L Z, cujus haec
nACuTA eCE, uE rectam Z 2 ad C cendencem, cissoide et Pemicir-
culi C Z 2 Peripheria intercepeum, bicariam secet CHI recta
dirmetio FC Perpendicularirer insi ens in cenero O: Sparium
FC Z A F longitudine insinitum C, Z L. cissoidi C F A ciren
lum tancenti interjectum, sericirculi E C triplum esse, osferre.
Petiscurem. Du, ut yperbolas Infinitas (de quibus cum D.
N
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