d punftum B convergentes , atque incandem fuperficiem VC7 incidentes, iic refringuntur,ut intra rar.um ad punclum A convergant. Sic radioincidentia: cxiftcnte AZ intra rarum, fiet in denfo ra-dius rcfractionis Z 5 1 qui à punclo B proccdit; &: è con-trario , exiftcnte intra denfum radio incidentix… … CN ^ec. de lAcAd. Tome VI. i8<5 DeResolutione JEqjj Kr lovsv m. Septimo, quoniam ambo foci A, B in hac fecundafigura rcpcriuntur extra utrumque circulum intervallo-rum : fit ut tam amba; rcQix quse à puucto A proceden-tes, tangunt fecundum locum bafium GLNO, quàmambas qua: à punâ:o B procedcntes,…
Geometry · Mathematics
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