# Geometrical Conic Sections: An Elementary Treatise in which the Conic Sections are Defined as the Plane Sections of a Cone, and Treated by the Method of Projections

Macmillan, 1872 - Conic sections - 108 pages

### Contents

 Definitions 1 CHAPTER II 7 PF PG BC² PF 10 Supplemental Chords 14 The ellipse is the projection of a circle 18 PV Vp 24 7 31 10 33
 Projection of the rectangular hyperbola 47 QV2+ 65 10 68 the curve 78 Length of focal chord 101 Conjugate hyperbola conjugate diameters 9 1 47 54 54

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