It was also shown that both accuracy and convergence could be ensured by 4 - node quadrilateral element.

同时表明,采用四节点四边形单元能够保证数值解的准确性且具有良好的收敛性.

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Based on FEM theory, a program of isoperimetric quadrilateral element is made using MATLAB software.

基于有限元理论, 用MATLAB语言编制了四结点等参元计算机程序.

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