V2EX invariance

Invariance

定义 Definition

invariance不变性;恒定性。指某个性质、结构或数量在特定变换、条件变化或比较下保持不变(常见于数学、物理、统计与计算机科学语境)。也可更一般地指“始终如一、不会改变的特征”。

发音 Pronunciation (IPA)

/nvrins/

例句 Examples

Invariance means the rule works the same way every time.
不变性意味着这条规则每次都以同样的方式起作用。

The scientist tested the invariance of the measurement across different temperatures and instruments to ensure the result was reliable.
科学家检验该测量在不同温度与仪器下的不变性,以确保结果可靠。

词源 Etymology

来自 **in-**(否定前缀,“不”)+ variance(变化、变异,源自拉丁语 variare “使不同、改变”)。合起来字面意思就是“没有变化”,引申为“在变化中保持不变的性质”。

相关词 Related Words

文学作品 Literary Works

  • Hermann WeylSymmetry》:讨论对称性与“在变换下保持不变”的思想(不变性概念贯穿全书)。
  • Bertrand RussellIntroduction to Mathematical Philosophy》:涉及数学结构与逻辑关系中“在变换或表述改变下保持不变”的观念(与不变性思想密切相关)。
  • Isaac NewtonPhilosophi Naturalis Principia Mathematica(《自然哲学的数学原理》)》:虽未必以现代术语频繁使用 invariance,但物理规律在不同参照与条件下保持一致的思想与“不变性”高度相关。
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