Apollonius <Pergaeus>; Lawson, John, The two books of Apollonius Pergaeus, concerning tangencies, as they have been restored by Franciscus Vieta and Marinus Ghetaldus : with a supplement to which is now added, a second supplement, being Mons. Fermat's Treatise on spherical tangencies

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page |< < ([ii]) of 161 > >|
138[ii]
N. B. Between each of the Data a full ſtop is placed. Moreover, m and n are
ſometimes uſed for different ſegments than thoſe of B by P, but then it is ſignified in
words:
- the ſame alſo is to be obſeved of P.
Obſerve likewiſe, for the more ready finding any propoſed Problem in the Synop-
ſis, that the data are ranged in the ſame order as the Symbols here recited;
viz.
all data whereof V is one are placed firſt; next thoſe where B is given, either ſim-
ply by itſelf, or combined with any other datum;
next P, & c.
Moreover, when in the references you find this mark*, it ſignifies that ſuch Authors
have only conſtructed the Problem partially, and not generally as propoſed in the Synop-
ſis, e.
g. for a right-angled triangle, when it is propoſed for a triangle in general;
and again, for a line biſecting another, when it is propoſed to cut it ſo that the ſeg-
ments may be in any given ratio.

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