V2EX numerical method

Numerical Method

释义 Definition

数值方法 / 数值计算方法:用一系列可执行的计算步骤(算法)在计算机上对数学问题进行近似求解的方法,常用于难以获得解析解的方程、积分、微分方程、优化等问题。

发音 Pronunciation (IPA)

/numrkl mθd/

例句 Examples

Numerical methods can approximate solutions when exact formulas are unavailable.
当没有精确公式时,数值方法可以用来近似求解。

To model airflow around the wing, the engineers used a numerical method that iteratively solved a set of differential equations.
为了模拟机翼周围的气流,工程师使用了一种数值方法,通过迭代求解一组微分方程。

词源 Etymology

numerical 源自拉丁语 numerus(“数字、数量”),表示“与数字有关的”;method 源自希腊语 methodos(“追求/探索的途径”),表示“方法、路径”。合起来 numerical method 字面即“用数字与计算步骤来求解的方法”,强调用计算(常为近似)来得到结果。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Numerical Recipes: The Art of Scientific Computing(Press, Teukolsky, Vetterling, Flannery)
  • An Introduction to Numerical Analysis(Kendall E. Atkinson)
  • A First Course in the Numerical Analysis of Differential Equations(Arieh Iserles)
  • Numerical Methods for Engineers(Chapra & Canale)
  • Finite Difference Methods for Ordinary and Partial Differential Equations(Randall J. LeVeque)
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