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**LU-Factorization Algorithm??**

**1. Homework Statement**

Develop an algorithm for finding directly the UL-factorization of a matrix A, where L is a unit lower triangular and U is upper triangular. Give an algorithm for solving ULx=b.

**2. Homework Equations**

I'm not sure how to tackle this problem since the book already showed us how to do Doolittle's factorization and I'm assuming they want a different method of doing the same thing..

**3. The Attempt at a Solution**

I don't know how to attempt this problem.

Thanks in advance for your help!