单词 | attractor |
释义 | attractor[ uh-trak-ter ] / əˈtræk tər / nouna person or thing that attracts. Physics. a state or behavior toward which a dynamic system tends to evolve, represented as a point or orbit in the system's phase space. Origin of attractorFirst recorded in 1645–55 Words nearby attractorattraction, attraction sphere, attractive, attractiveness, attractive nuisance, attractor, attrib., attribute, attributes, attribution, attribution theory Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for attractorScientific definitions for attractorattractor [ ə-trăk′tər ] A set of states of a dynamic physical system toward which that system tends to evolve, regardless of the starting conditions of the system.♦ A point attractor is an attractor consisting of a single state. For example, a marble rolling in a smooth, rounded bowl will always come to rest at the lowest point, in the bottom center of the bowl; the final state of position and motionlessness is a point attractor.♦ A periodic attractor is an attractor consisting of a finite or infinite set of states, where the evolution of the system results in moving cyclically through each state. The ideal orbit of a planet around a star is a periodic attractor, as are periodic oscillations. A periodic attractor is also called a limit-cycle.♦ A strange attractor is an attractor for which the evolution through the set of possible physical states is nonperiodic (chaotic), resulting in an evolution through a set of states defining a fractal set. Most real physical systems (including the actual orbits of planets) involve strange attractors. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
随便看 |
英语词典包含192737条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。