... 一阶常微分方程式 (First-Order Differential Equations) 二阶常微分方程式 (Second-Order Linear Differential Equations) 幂级数解 (Power Series Solutions) ...
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second-order linear partial differential equations 二阶线性偏微分方程
With the ordinary theory of Heat Exchange in physics this essay visualizes the essence of second-order homogenous linear partial differential equations.
本文利用物理学中常见的热传导理论，形象地阐释了二阶齐次线性偏微分方程的本质。
Classical mathematical equations is the large number of second-order linear partial differential equations.
经典的数理方程大量的是二阶线性偏微分方程。
In this paper, we study an approximate solution of the second-order linear ordinary differential equations with variable coefficients.
本文研究了二阶变系数线性常微分方程的一种近似求解方法。
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