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# Title: Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light (shelfmark Leibn. Marg. 193)
# Folio 152, page id 1677894601:0332
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=1677894601&page=332
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s
152
Si radices duxe majores sunt aequales, e tertia est
ejuldem tigni, Conchoidalis habebit punctum conju-
satum ad conrexitatem luam, estq; species quadra-
gelima tertia.
Si radices duae sunt aequales Xt tertia est tioni cont
trarii Conchoidalis habebit punctum conjusatum
ad concaritatem luam, eAq; species quadraselima
Quarta.
Si radices duxe sunt impossibiles habebitur COn-
choidalis pura line Orali, Nodo, Cuspide ret
puncto conjusato. Ouae lpecies est quadraselima
quinta.
SiguandO in primO RGUATIOMLII CALU TermInUS a X3
rem Parabolicae Clees e terminus bZ X non deest, Figura erit II)-
Diametrum non Perbola Parabolica duo habens crura Lly perbolica ad
Unam Alymptoton SAC X duo Parabolica in pla-
sam unam e eandem conversentia. Si terminus
ex non decst figura nullam habebit diametrum, Cin
dees habebit unicam. In priori casu species sunt
Mae.
Si tres radices AP, A w AX aequationis hujus
bX3 ] CZ -] dX ] : ce =0 unt inaequales X ejuldem
sioni, figura constabit ex Ovali X aliis duabus C urvis
quae partim FTrperbolicae lunt a partim Parabolicae.
Nempe crura Parabolica continuo ductu junguntur
cruribus IEyperbolicis sibi proximis. Fit haec est
species quadregelima lexta.
Si radices duae minores unt aequales de tertia est
ejusdem Pioni, Oralis dc una Currarum illarum
yperbolo. Parabolicarum junguntur X se decustant
in tormam NVodi. Oux species est quadrasesi.ni
Sepeima.
Fig. 49
i
48
15. 48, 45
i
Tsyperbola sep-
habentes.