Smart, Edward Howard · London : Macmillian and Co. · leaf 276
n a pointF on the curve. Given five tangents to a conicto construct the conic by tangents. Let a, b, c, d, e be the givenlines (Fig. 1256). On a take anytwo points X, Y. Let the joins of (be) and (ce) toX, Y be denoted by e^, en respec-tively, and those of {bd) and (cd)to the same points be denoted… … Fig. 125a.
Geometry, Projective
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
