Apollonius of Perga

When1: -230

When2: -200

Who: Apollonius of Perga or Appolonios or Great Geometer

What: mathematician/philosopher

Where: Greece

works\ Conics or Conic Sections [-230 to -200]

Detail: He lived -262 to -185 and was Neo-Pythagorean and mystic. He invented a systematic theory of parabolas, ellipses, and hyperbolas, based on eccentricity, directrix, and focus. He studied right circular cones, oblique circular cones, hyperbolas, parabolas, ellipses, conjugate diameters, tangents, asymptotes, foci, conic intersections, maximum and minimum conic lengths, conic normals, similar and congruent conics, and conic segments. Two conic tangents meet at poles, and sides are polars. Given three points, lines, or circles, construct a circle tangent to or including the points, lines, or circles {Apollonian problem}.

Ethics

Simple life is best.

Mind

Mind and body are separate realities.

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Date Modified: 2022.0224