V2EX exponential

Exponential

定义 Definition

exponential(形容词):指数的;呈指数式增长(或变化)的,通常指增长速度越来越快,常见于数学、科学、人口、传播、利息等语境。(也可作名词,指“指数函数/指数表达式”,此处以常见形容词义为主。)

发音 Pronunciation (IPA)

/ekspnenl/

例句 Examples

An exponential function doubles at a constant rate.
指数函数会以恒定的倍增规律变化。

The video’s reach became exponential after it was shared by several major accounts, spreading far beyond the original audience.
在被几个大型账号转发后,这段视频的传播范围呈指数式增长,远远超出了最初的受众。

词源 Etymology

来自 exponent(指数)+ 形容词后缀 -ialexponent 源于拉丁语 exponere(“展示、说明”),在数学中“指数”用来“说明”一个数要被乘多少次;因此 exponential 就指“与指数有关的”以及“按指数规律增长的”。

相关词 Related Words

文学作品 Literary Works

  • Edwin A. Abbott,《Flatland》:涉及维度与数学概念的讨论中常出现与指数/幂相关的表述。
  • Lewis Carroll,《Alice’s Adventures in Wonderland》:书中多处以数学思维与逻辑游戏为背景,常见“指数/幂”类概念的旁及与引用。
  • Herman Hesse,《The Glass Bead Game》(《玻璃珠游戏》):作品探讨数学与思想体系,涉及指数、对数等数学意象与术语的语境较多。
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