V2EX transversal

Transversal

定义 Definition

transversal(形容词/名词)常指“横向的;横断的;与主要方向相交的”。在数学中也常用作名词,表示“横截线/截线”(穿过多条线的那条线)。

发音 Pronunciation (IPA)

/trnzvsl/

例句 Examples

A transversal line crosses two parallel lines.
一条截线穿过两条平行线。

In the diagram, the transversal creates corresponding angles that are equal when the lines are parallel.
在该图中,当两条线平行时,这条截线会形成相等的对应角。

词源 Etymology

源自拉丁语 transversus,意为“横过的、横向的”(由 *trans-*“穿过” + vertere“转、转向”构成),后来在英语中发展出“横断的/横向穿过”的含义,并在几何与解剖等领域得到专门使用。

相关词 Related Words

文学与作品 Literary Works

  • Euclid, Elements(常见英译本的几何论述中会用到 transversal 来说明“截线”与角的关系)
  • H. S. M. Coxeter, Introduction to Geometry(几何教材/著作中频繁出现,用于讨论平行线与截线产生的角)
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