Day 38 in Mat225

Last time: More orthogonal projections

Next time: 7.1

Today:

Return 5.2 and 5.3 problems:
Collect problems 6.2.
Questions/Comments on old stuff?
Section 6.3:
- section 6.3 summary
- Problems:
  - #1, p. 400
  - #12, p. 400
  - #20, p. 401
Section 6.5:
- section 6.5 summary

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