Day 19 in Mat225

Today:

• Return Test 1 (here's an on-line key)
  • Median score: 59/80

• Nick found some interesting TI code for linear algebra that you might want to use with your TI.

• Questions/Comments on old stuff/exam?

• Chapter 3: determinants
  • chapter 3 highlights

  • You can hand in the homework problems for chapter 3 as a replacement homework score, if you wish. They'll be due next Wednesday, if you decide to hand them in.

• Section 4.1: vector spaces and subspaces
  • section 4.1 summary

  • Problems, pp. 223-225
    • #1, 7, 8
    • #15-18
    • #19, 21

Next time: Section 4.2