旋转双线性非协调元二网格法的MATLAB程序实现

Matlab program implementation of Q_1^(rot) non-conforming element with two grid method

高等数学中特征值问题的求解一直是人们关注的核心问题之一,而Poisson方程特征值的求解更是比较复杂的问题。在求解Poisson方程特征值时,高效率更准确是追求的目标。给出了二维情况下二网格法求特征值的Matlab程序,得到Qrot1元的特征值,并且与非二网格下得到的结果进行了比较,得到了高效的结果,进而展示了Matlab软件在特征值问题求解方面的巨大贡献。

The solution of the eigenvalue problem in higher mathematics has always been one of the core problems, however, the eigenvalue of Poisson equation is a problem more complex to solve. The efficiency and veracity are the objects when the eigenvalue of Poisson equation is calculated. In this paper, the procedure of Matlab and eigenvalue of element is obtained with the method of two - grid method in two dimensions and eigenvaluc is compared with the result of non - two - grid method. The efficiency and veracity are displayed, which shows the Matlab software contributes significantly to the solution of eigenvalue problem.