An Introduction to the Ancient and Modern Geometry of Conics: Being a Geometrical Treatise on the Conic Sections with a Collection of Problems and Historical Notes and Prolegomena

Deighton, Bell and Company, 1881 - 384 páginas

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Página 78 - Every central conic has a second focus and directrix ; and the sum of the focal distances of any point on the curve...
Página 46 - To draw that diameter of a given circle which shall pass at a given distance from a given point. 9. Find the locus of the middle points of any system of parallel chords in a circle.
Página 114 - Find the locus of the centre of a circle which touches two fixed circles.
Página 210 - P, which moves so that its distance from a fixed point is always in a constant ratio to its perpendicular distance from a fixed straight line, is called a Conic Section.

Acerca del autor (1881)

Charles Taylor works creatively with material drawn from both analytical and Continental sources. He was born in Montreal, educated at McGill and Oxford universities, and has taught political science and philosophy at McGill since 1961. He describes himself as a social democrat, and he was a founder and editor of the New Left Review. Taylor's work is an example of renewed interest in the great traditional questions of philosophy. It is informed by a vast scope of literature, ranging from Plato to Jacques Derrida. More accessible to the average reader than most recent original work in philosophy, Taylor's oeuvre centers on questions on philosophical anthropology, that is, on how human nature relates to ethics and society. Taylor develops his themes with an engaging, historically accurate insight.

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