Principle of least action 1 introduction 2025-05-17

最小作用原理principle of least action是动力学统一理论，也被称为宇宙动力学。 主要参考：Jacques Vanier 与 Cipriana Tomescu 的联合著作 UniverseDy ...

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代数19 域 2025-05-11

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代数18 整环中的可除性 2025-04-19

Fundamental definitions do not arise at the start but at the end of the exploration, because in order to define a thing you must know what it is an ...

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代数17 多项式因式分解 2025-04-19

Very early in our mathematical education—in fact in junior high school or early in high school itself—we are introduced to polynomials. For a see ...

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