2021年10月7日
矩阵论 - 4 - LU分解
摘要： This session explains inverses, transposes and permutation matrices. We also learn how elimination leads to a useful factorization A = LU and how hard a computer will work to invert a very large matrix. 阅读全文
posted @ 2021-10-07 21:52 zju_cxl 阅读(417) 评论(0) 推荐(0)
矩阵论 - 3 - 矩阵乘法和逆矩阵
摘要： This lecture looks at matrix multiplication from five different points of view. We then learn how to find the inverse of a matrix using elimination, and why the Gauss-Jordan method works. 阅读全文
posted @ 2021-10-07 18:14 zju_cxl 阅读(467) 评论(0) 推荐(0)
矩阵论 - 2 - 矩阵消元
摘要： This session introduces the method of elimination, an essential tool for working with matrices. The method follows a simple algorithm. To help make sense of material presented later, we describe this algorithm in terms of matrix multiplication. 阅读全文
posted @ 2021-10-07 16:41 zju_cxl 阅读(230) 评论(0) 推荐(0)