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On a Nine-Point Conic, etc.
Published online by Cambridge University Press: 20 January 2009
Extract
1. The Pole and Polar Theorem for the Circle may be proved as follows:—
Let P be any point, and C the centre of a circle.
Let AB be the diameter through P, and QQ′ any chord passing through P.
Let AQ, BQ′ meet in M; AQ′, BQ in O; MO, AB in N; and MO, QQ′ in P′.
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- Copyright © Edinburgh Mathematical Society 1905
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