V2EX bisection

Bisection

定义 Definition

bisection 指“二等分;对分;平分”的动作或结果,常用于数学与几何(把线段、角、区间等分成两等份),也可更一般地指把某物分成相等的两部分。另有较少见用法指逻辑或分类中的“二分法/二分”。

发音 Pronunciation

/baskn/

例句 Examples

The bisection of the angle was easy to draw.
把这个角二等分很容易画出来。

Using the bisection method, we can find a root of the equation by repeatedly halving the interval until the error is small enough.
使用二分法,我们可以通过不断把区间对半分来求方程的一个根,直到误差足够小为止。

词源 Etymology

来自 **bi-**(“二、两”)+ section(“切割、分割”)。字面意思就是“切成两部分”,因此在数学语境中稳定地表示“二等分/对半分”。

相关词 Related Words

文学与名著用例 Literary Works

  • Euclid, Elements(《几何原本》):几何作图与命题中常涉及“平分/二等分”(英文讨论中常用 bisect/bisection 来表述“平分线段/角”)。
  • Sir Isaac Newton, Philosophi Naturalis Principia Mathematica(《自然哲学的数学原理》):后世英文评注与讲解中常用 bisection 描述几何分割与测度中的“对半分”思路。
  • Richard Courant & Herbert Robbins, *What Is Mathematics?*(《什么是数学》):在讲解求根与数值方法的章节中常出现 bisection (method) 相关表述。
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