| 单词 | geometry |
| 释义 | geometry (once / 916 pages) n Geometry is the part of mathematics that deals with calculating the distance around a circle, the angles that make up a triangle, or the amount of room inside a cube. If it involves measuring space, it’s probably geometry. The Greek roots of geometry literally mean “to measure earth,” and over 5000 years ago farmers started using geometry to figure out how much land they owned. You study geometry in school, and you use it all the time, like calculating the best angle to cut a piece of wood for a birdhouse, or when playing a game of pool. Astronomers use geometry to measure planets millions of miles away—much easier than finding a ruler that big. WORD FAMILYgeometry: geometric, geometrical, geometrician, geometries+/geometric: geometrically/geometrician: geometricians USAGE EXAMPLESEvery occasion for geometry is exploited, be it a hairdo, a raised thigh or a garment. New York Times(Dec 15, 2016) One user on Twitter added some geometry to illustrate the angle and distance of the bow to the subject. BBC(Dec 12, 2016) What interested him most was the geometry of nature; by shooting wild flora, he hoped to create Pollock-like abstractions. The New Yorker(Dec 11, 2016) n the pure mathematics of points and lines and curves and surfaces Hypo|Hyper affine geometry the geometry of affine transformations Euclidean geometry, elementary geometry, parabolic geometry(mathematics) geometry based on Euclid's axioms fractal geometry(mathematics) the geometry of fractals non-Euclidean geometry(mathematics) geometry based on axioms different from Euclid's spherical geometry(mathematics) the geometry of figures on the surface of a sphere analytic geometry, analytical geometry, coordinate geometrythe use of algebra to study geometric properties; operates on symbols defined in a coordinate system plane geometrythe geometry of 2-dimensional figures solid geometrythe geometry of 3-dimensional space descriptive geometry, projective geometrythe geometry of properties that remain invariant under projection hyperbolic geometry(mathematics) a non-Euclidean geometry in which the parallel axiom is replaced by the assumption that through any point in a plane there are two or more lines that do not intersect a given line in the plane Riemannian geometry, elliptic geometry(mathematics) a non-Euclidean geometry that regards space as like a sphere and a line as like a great circle pure mathematics the branches of mathematics that study and develop the principles of mathematics for their own sake rather than for their immediate usefulness |
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