## An Elementary Treatise on Trilinear Co-ordinates: The Method of Reciprocal Polars, and the Theory of Projections |

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An Elementary Treatise on Trilinear Co-Ordinates, the Method of Reciprocal ... Norman MacLeod Ferrers No preview available - 2015 |

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angle angular points appears asymptotes becomes called Cambridge centre Chap chord circle co-ordinates coincide College common condition conic considered constant Crown 8vo curve described determine directrix distance drawn Edition ELEMENTARY equal equation Examples expressed Fcap fixed point focus follows four points given point given straight line gives harmonic Hence hyperbola identical imaginary joining late Lecturer line at infinity locus Mathematics meet method Nature numerous Illustrations observed obtain opposite sides pair parabola parallel passing pencil perpendicular points of contact points of intersection polar pole positive Professor projection prove ratio reciprocal relation represented respect right angle Royal satisfy Science seen sides similar Similarly tangents term theorem THEORY third three points tion touch TREATISE triangle of reference University values whence written