电场的数学基础包括：库仑定律的积分形式、高斯定理的积分形式，拉普拉斯公式和泊松公式，散度定理。

Topics for the electric field mathematics include: The integral form of Coulomb's Law, Gauss's Law, the equations of Laplace and Poisson, and the divergence theorem.

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然后，利用多维拉普拉斯变换，推导出双线性系统非线性传递函数矩阵的计算公式。

Then by using multi-dimension Laplace transform, the computation formula of nonlinear transfer function matrices for MIMO bilinear system are deduced.

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本文采用理想费米体系统计力学有关理论和拉普拉斯变换，严格推导了朗道抗磁性的有关计算公式。

In this paper I have strictly derived these formulae about Landau Diamagnetism by using the theory of statistical mechanics of ideal Fermi system and Laplace transformation.

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