Publisher's Synopsis
Excerpt from A Geometrical Treatise on Conic Sections: With Numerous Examples; For the Use of Schools and Students in the Universities
So by taking any number of points, M', M on the directrix, we may Obtain as many points, P', P on the curve as we please, and the line which passes through A and all these points will be the parabola whose focus is S and directrix ick'.
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