An LDU factorization of a square matrix A is a factorization A = LDU, where L is a unit...

An LDU factorization of a square matrix A is a factorization A = LDU, where L is a unit lower triangular matrix, D is a diagonal matrix, and U is a unit upper triangular matrix (upper triangular with 1s on its diagonal). In Exercises, find an LDU factorization of A.

A in Exercise 4

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