Viviani, Vincenzo, De maximis et minimis, geometrica divinatio : in qvintvm Conicorvm Apollonii Pergaei
page |< < (130) of 347 > >|
154130
PROBL. XXXIII. PROP. LXXXIV.
Quoniam cum ſit rectangulum NGL æquale quadrato GF, erit NG ad
GF
, vt GF ad GL, &
componendo, NG cum GF, ſiue NK, erit ad GF, vt
FG
cum GL, ſiue vt KL ad GL, &
permutando NK ad KL, vt GF ad GL,
vel
vt NG ad GF, vel vt NF ad FL, ergo recta KAM Ellipſim ALCN 55Coroll.
12
. h.
tingit in A, ſed eadem KAM contingit quoque ad idem punctum A 664. h. pſim ABCO:
quapropter Ellipſis ALCN datæ ABCO erit circumſcripta. 7761. h. At ipſa erit _MINIMA_: nam quælibet alia, quæ ipſi adſcribitur per eoſdem
terminos
communis applicatæ AC, &
cum tranſuerſa diametro æquali ipſi
LN
, _licet maior ſuerit eadem ALCN_, inſcriptam ABCO omnino ſecat;
8883. h.

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