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Python实现所有算法-矩阵的LU分解
LU分解在本质上是高斯消元法的一种表达形式在应用上面,算法就用来解方程组。 实质上是将A通过初等行变换变成一个上三角矩阵,其变换矩阵就是一个单位下三角矩阵(有时是它们和一个置换矩阵的乘积)。 这些行变换的效果等同于左乘一系列单位下三角 ...
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