V2EX infinitesimal

Infinitesimal

释义 Definition

infinitesimal(形容词):极小的;微乎其微的;无限小的(常用于数学语境,指“比任何可测量的量都小”,但不等于 0)。也可泛指“非常非常小”。

发音 Pronunciation (IPA)

/n.f.nts..ml/

例句 Examples

The chance of rain is infinitesimal today.
今天下雨的可能性微乎其微。

In calculus, an infinitesimal change in x can produce a noticeable change in the function’s value.
在微积分中,x 的一个无限小变化可能会引起函数值的明显变化。

词源 Etymology

来自拉丁语构词:in-(不、无)+ finite(有限的)+ -esimal(表示“极小量”的后缀)。字面含义接近“小到几乎不可界定的量”。该词在数学、哲学与科学写作中常用来表达“无限小”的概念,后来引申到日常语境表示“极其微小”。

相关词 Related Words

文学作品 Literary Works

  • 《白鲸》 Moby-Dick(Herman Melville):书中多处使用“infinitesimal”等词汇来强调人类在浩瀚自然与宇宙面前的渺小与对比。
  • 《弗兰肯斯坦》 Frankenstein(Mary Shelley):在描写生命、科学与人类能力边界时,常见以“微小/几乎不可察”的表达来呈现细微变化与因果。
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