... variation of a function 函数的变差 variation of constants 常量变差 variation of parameters 常量变差 ...
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... 变分方程 variation equation 常数变动(法) variation of constants 因子的变差 variation of function ...
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Variation-of-Constants formula 常数变易公式
variation of constants method 常数变易法
method of variation of constants 常数变易法
variation of physical constants 物理常数的变化
The existence of particular solutions for a class of Riccati equations is studied by means of variation of constants and initial integral methods.
从一阶线性微分方程结构特点入手，给出了求其通解的常数变易法的数学原理，并简化了积分因子法。
In this paper, using total differentiation method and variation of constants, we give general solution formula of Bernoulli equation with different methods.
本文使用全微分法和常数变易法，从不同角度给出伯努利方程通解的公式。
A minor variation of the fundamental constants forbids life to appear - we just could not exist.
精细结构常数稍稍有些变动，生命就无法存在——我们就根本无法生存。
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