Today

• Vector spaces cont’d.

• Rank.

• HW3 due Oct 20 Wednesday @ 11:59pm on Gradescope/CCLE.

• HW4 due Oct 29 Friday @ 11:59pm on Gradescope/CCLE.

• Midterm on Nov 4. In class, closed book, one page (double-sided, letter size) cheat sheet allowed, material up to matrix inverses and linear equations.