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# Title: [Francisci Vietae Opera Mathematica] Francisci Vietæ Opera Mathematica (shelfmark Leibn. Marg. 101)
# Folio 229, page id 845634801:0235
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Irato. qu
1b
c0. CUB
; cubus
actertia
interm
aM.
inissel
cum P
inda
ass
erit
1101
secu
ed
ea P
atu
ob
R A.
Il A N C IS C. I VIL LA.
P C
E OMI E Y R I C A R V M
Canonica recentio.
229
fectiones Geometricas quidus aquunosomts quae
ncutatorum metam non excedunt, commode explicen-
ita canonice recenseo.
PROPOSTETO I.
Datam rectam lineam darx rectxe linexe addere.
Opus additionis. Sint datx dux rectae linex AB, B C. Oporret alceram alceri addere.
Concinuecur A B longicudine BC. Dico Factum esse quod oporruit. C ompolicam enim
NC AC ex AB, BC.
PR OPOSTTTO IL.
Datam recta HACAI dAEX LECL L HIICA AIIA)Ori aUFerrC.
Opus subductionis. Sint darae dux rectae linex inaequales AB, BC. OPOKTEF Ex A B majo-
ce, minorem auferre. Ex A B ablcindatur B C. Dico factum esse quod oporruic. Diffe-
tenciam enim inter A B _ BC, esse AC.
A
PEOPOSTEIO III
Delcribere treslineas rectas proportionales.
Sub a cenrro, intervallo quocumque
describatur circulus, de agacur diame-
TeT B A C. SUANEUE autem in COnETA-
rIaS PaTFES CITCUMFCFENEIX CD, CF X
quales; _ connexa D F secet BC in F
Dico factum esse quod oportuit. PrO.
porcionales enim eAeBF, FD, FC.