V2EX monotonicity

Monotonicity

释义 Definition

monotonicity(单调性):指一个量随另一个量变化时始终保持同一方向的变化趋势,即只增不减(单调递增)或只减不增(单调递减)。常用于数学分析、函数、序列与算法性质中。

发音 Pronunciation (IPA)

/mntnsti/

例句 Examples

Monotonicity makes the graph easier to predict.
单调性让图像更容易预测。

By proving the monotonicity of the sequence, we can conclude it converges under the given bounds.
通过证明该序列的单调性,我们可以在给定界限下得出它收敛的结论。

词源 Etymology

来自 monotone(单调的)+ -ity(名词后缀,表示性质/状态)。monotone 源于希腊语 monos(“单一”)+ tonos(“音调/张力”),原意偏向“单一音调”,后来引申为“变化不多/保持同一趋势”,再进一步在数学中固定为“单调(递增/递减)性质”。

相关词 Related Words

文学与著作中的用例 Literary & Notable Works

  • Principles of Mathematical Analysis(Walter Rudin)在函数与序列章节中常用“monotonicity”讨论单调性与收敛、连续性等关系。
  • Concrete Mathematics(Graham, Knuth, Patashnik)在分析与证明技巧中经常借助单调性进行估计与比较。
  • Introduction to Algorithms(Cormen, Leiserson, Rivest, Stein)在算法分析中出现“monotonicity”描述某些代价函数或性质的单调变化,用于证明正确性或复杂度界。
  • The Art of Computer Programming(Donald E. Knuth)在严谨的算法与数学论证中,单调性常作为关键性质出现。
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