### Session Overview

This session explains inverses, transposes and permutation matrices. We also learn how elimination leads to a useful factorization |

### Session Activities

#### Lecture Video and Summary

- Watch the video lecture Factorization into A = LU
- Read the accompanying lecture summary (PDF)
- Lecture video transcript (PDF)

#### Suggested Reading

- Read Section 2.6 in the 4
^{th}or 5^{th}edition.

#### Problem Solving Video

- Watch the recitation video on LU Decomposition
- Recitation video transcript (PDF)

### Check Yourself

#### Problems and Solutions

Work the problems on your own and check your answers when you’re done.