Harriot, Thomas, Mss. 6785

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10955
[Commentary:
On this page, Harriot examines Problem IX from Apollonius Gallus (Viete 1600a, Prob .
Problema IX.
Datis duobus circulis, & puncto, per datum punctum circulum describere quem duo dati circuli contingat.

IX. Given two circles and a point, through the given point describe a circle that touches the two given ]
.oo) Apoll: Gall. prob. 9. de casibus

[Translation: Apollonius Gallus, Problem IX, on impossible ]
Duobus datis
circulis et

[Translation: From two given circles and a ]
Si tertius tangetur
a datis, intra:
punctum non dabitur in abc
neque in spatio gklh.
extra:
punctum non dabitur
in spatio fghd, kcl
[Translation: If the third is touched by the given one, internally, then the point may not be in abc nor in gklh; if extrenally, the point may not be in the spaces fghd or kcl.
Extra et intra:
punctum non dabitur
in spatio fghd, kcl
[Translation: Outside or inside, the point may not be in the spaces fghd or kcl.
Si unus datorum includat
alterum circulum:
punctum non dabitur
extra maiorem circuli
vel intra
[Translation: If one of the given circles includes the other circle, the point may not be outside the larger circle nor inside the smaller circle.

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