V2EX differential-equation

Differential Equation

释义 Definition

微分方程:一种包含未知函数及其导数的方程,用来描述“变化率”与变量之间的关系,常用于物理、工程、经济、生物等领域的建模与预测。(更广义上也包括偏微分方程等类型。)

例句 Examples

A differential equation can model how a population changes over time.
微分方程可以用来描述一个种群如何随时间变化。

By solving the differential equation, the engineer predicted the system’s response to a sudden disturbance.
通过求解该微分方程,工程师预测了系统对突发扰动的响应。

发音 Pronunciation (IPA)

/dfrnl kwen/

词源 Etymology

differential 来自 different(不同的)并与拉丁语词根 differentia(差别)相关,在数学中引申为“与微分(差分、变化量)有关的”。equation 源自拉丁语 aequatio(使相等),指“方程”。合起来 differential equation 字面意思就是“涉及微分(导数)的方程”,强调用“变化率”来表达关系。

相关词 Related Words

文学与名著作品 Literary Works

  • 《微分方程》(Differential Equations) George F. Simmons:经典教材与科普性较强的入门读物中频繁出现该术语。
  • 《微分方程及其应用》(Differential Equations and Their Applications) Martin Braun:以应用为主的著作,术语出现密集。
  • 《物理学讲义》(Lectures on Physics) Richard P. Feynman:在讨论振动、波动与动力学时常提到微分方程作为核心工具。
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