...artial differential equations--广义函数与偏微分方程(英文原版进口) Approximate calculation of integrals--积分的近似计算(英文原版进口) Dirichlet's principle、conformal mapping and minimal surfaces--Dirichlet原理 保形映射与极小曲面(英文原版进...
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本文对于矩形区域上某一内点为奇点的奇异积分的近似计算给出了优化中心数值算法，它在迭代计算过程中避免了函数值的重复计算。
This paper presents an optimum numerical algorithm of center rule for the approximate evaluation of singular integrals over rectangular domains with a inner singularity.
在近似计算中常要考虑积分与积分和的误差。
The error of integration and integral sum are often considered in approximation and(calculation).
本文推广和改进了定积分近似计算的矩形公式。
In this paper, we extend and improve the rectangle formula of definite integrals 'approximate calculation.
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