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geometry

(Encyclopedia) geometry [Gr.,=earth measuring], branch of mathematics concerned with the properties of and relationships between points, lines, planes, and figures and with generalizations of these…

non-Euclidean geometry

(Encyclopedia) non-Euclidean geometry, branch of geometry in which the fifth postulate of Euclidean geometry, which allows one and only one line parallel to a given line through a given external…

descriptive geometry

(Encyclopedia) descriptive geometry, branch of geometry concerned with the two-dimensional representation of three-dimensional objects; it was introduced in 1795 by Gaspard Monge. By means of such…

fractal geometry

(Encyclopedia) fractal geometry, branch of mathematics concerned with irregular patterns made of parts that are in some way similar to the whole, e.g., twigs and tree branches, a property called self…

Steiner, Jakob

(Encyclopedia) Steiner, JakobSteiner, Jakobyäˈkôp shtīˈnər [key], 1796–1863, Swiss mathematician. He was largely self-taught and was professor of geometry at the Univ. of Berlin from 1834. A pioneer…

Geometry: Max Geometry

Max GeometryGeometryWhose Geometry Is It Anyway?Non-Euclidean GeometryHyperbolic Geometry: Saddle Up!Spherical GeometryTaxi-Cab GeometryMax GeometryHow Many Shapes Can a Circle Have? With the…

Geometry: Spherical Geometry

Spherical GeometryGeometryWhose Geometry Is It Anyway?Non-Euclidean GeometryHyperbolic Geometry: Saddle Up!Spherical GeometryTaxi-Cab GeometryMax GeometryHow Many Shapes Can a Circle Have? In…

algebraic geometry

(Encyclopedia) algebraic geometry, branch of geometry, based on analytic geometry, that is concerned with geometric objects (loci) defined by algebraic relations among their coordinates (see…