V2EX lagrange

Lagrange

释义 Definition

Lagrange:拉格朗日(人名;常指法国数学家约瑟夫-路易拉格朗日),在数学与物理语境中也常用来指与他相关的概念,如拉格朗日乘子(Lagrange multiplier)拉格朗日函数/拉格朗日量(Lagrangian)拉格朗日点(Lagrange point)等。

发音 Pronunciation (IPA)

/lrn/(英美常见近似读法)

例句 Examples

Lagrange made major contributions to calculus and mechanics.
拉格朗日对微积分和力学做出了重要贡献。

Using Lagrange multipliers, we can optimize the function under constraints without directly eliminating variables.
使用拉格朗日乘子,我们可以在不直接消去变量的情况下对带约束的函数进行优化。

词源 Etymology

Lagrange源自法语姓氏,因18世纪法国(意大利裔)数学家与天文学家Joseph-Louis Lagrange(约瑟夫-路易拉格朗日)而广为人知;许多数学与物理概念以他的姓氏命名,用于纪念其在解析力学、变分法、数论等领域的奠基性工作。

相关词 Related Words

文学与名著用例 Literary & Notable Works

  • Lagrange, Mécanique analytique(《解析力学》):拉格朗日本人著作,奠定解析力学体系,书中大量使用并发展后来被称为“拉格朗日”相关的方法与表述。
  • Herbert Goldstein, Classical Mechanics(《经典力学》):经典教材,频繁出现Lagrange/Lagrangian等术语,用于系统讲解拉格朗日力学与相关推导。
  • Landau & Lifshitz, Mechanics(《力学》):在变分原理与拉格朗日量框架下展开,常出现Lagrange相关术语与引用。
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