Smart, Edward Howard · London : Macmillian and Co. · leaf 128
ginary,can be drawn to any conic. These follow at once by projection from the circle (§§ 2 and 3). A conic is therefore a curve of the second order and ofthe second class. II. The locus of the intersection of tangents at the endsof chords of a conic which pass through a fixed point is astraight…
Geometry, Projective
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