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推导太长没细看,如果都是1 -2 1,那你的矩阵不相容无法求解。
@李东岳 在 势流算法问题 中说:
我和您推导的结果最大的区别在于系数矩阵的那个3和源项,这个3是咋求出来的呢?
老师,我推导出来的系数矩阵是这个,上面是我写错了 \begin{equation} \begin{bmatrix} 1& -1& 0& 0\-1& 2& -1& 0\ 0& -1& 2&-1 \ 0& 0& -1& 1\ \end{bmatrix} \end{equation}