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13问答网 > 如何编写用高斯约旦全主消元法求矩阵的逆的的MATLAB程序

如何编写用高斯约旦全主消元法求矩阵的逆的的MATLAB程序

2025-03-15 17:44:44

推荐回答（1个）

回答1：

首先要讲清楚是要求解线性方程组还是一定要显式求出矩阵的逆,如果是前者还涉及右端项到底有多少个,然后还要给所谓的快速和高效定一个标准,这样才有意义.
不过即便是对于无结构的普通方阵而言,通常纯的Gauss消去法比Gauss-Jordan消去法要好,因为O(n^3)部分的代价小,后续解方程时可以视情况而选择,而Gauss-Jordan消去则没有选择余地.

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