V2EX parameter

Parameter

定义 Definition

parameter:参数;(决定某过程/系统行为的)变量或界限条件。在数学、统计、编程与工程中常指“用来控制、描述函数或系统的量”。(也可指一般性的“范围/界限”,但较少见。)

发音 Pronunciation (IPA)

/prmtr/

例句 Examples

The function takes two parameters.
这个函数接受两个参数。

We adjusted the model’s parameters to improve its accuracy under real-world conditions.
我们调整了模型的参数,以提高它在真实世界条件下的准确性。

词源 Etymology

来自希腊语 **para-**(“在旁、辅助”)+ metron(“测量”),经由拉丁语/法语演变进入英语,原意与“辅助测量、度量的标准/条件”相关,后来在数学与科学语境中固定为“参数”。

相关词 Related Words

文学作品 Literary Works

  • “The Principles of Quantum Mechanics”(P. A. M. Dirac):在物理与数学推导中频繁使用 parameter 表示可变的条件量。
  • “A Mathematician’s Apology”(G. H. Hardy):讨论数学表达与抽象概念时会出现 parameter 等术语。
  • “The Art of Computer Programming”(Donald E. Knuth):在算法与程序设计语境中常用 parameter 指函数/过程的参数。
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