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无网格伽辽金法中用到的数值积分，此程序，提供多点高斯积分，可任意选择！-element-free Galerkin method used in the numerical integration of this process, provide more Gaussian integral, can be arbitrary choice.

顺序高斯消元法，顺序高斯消元法

用java来编写列主元gauss消去法解方程组.txt