Math 215 -- Introduction to Linear Algebra

Announcements

• Homework 16 due Wed 5/1:
  Sect 6.1 #1, 3, 5, 12, 14
  Sect 6.2 #11, 12
  Sect 6.3 #3, 5, 6, 7, 8, 12
  Sect 6.4 #1, 2, 9, 10
  

• Relevant reading in Ch 6:
  - 6.1
  - 6.2, skipping "decomposing a force into components"
  - 6.3
  - optional: 6.4, up to "orthonormal bases"
  - optional: 6.5, up to Example 4
  
• Homework 15 due Fri 4/26:
  Sect 5.3 #1, 2, 3, 4, 5, 6, 7, 8, 9, 12, 16, 20
  

• Homework 14 due Tue 4/16 Thu 4/18:
  Sect 5.1 #1, 3, 5, 7, 9, 11, 12, 14, 20
  Sect 5.2 #1, 3, 5, 9, 10, 12, 15, 18, 19, 20 (added 4/16)
  

• Homework 13 due Tue 4/9:
  Sect 4.5 #1, 3, 5, 6, 10, 11, 13, 14, 21, 22, 24
  Sect 4.6 #1, 3, 5, 7, 8, 10, 14, 19, 20, 25, 30

• Homework 12 due Tue 4/2:
  Sect 4.3 #1, 3, 5, 7, 9, 10, 11, 13, 15, 16, 19, 20, 26
  Sect 4.4 #1, 3, 5, 7, 8, 9 (*), 10, 13, 14, 17, 21
  (*) See text for definition of "change-of-coordinates matrix"

• Homework 11 due Tue 3/26:
  Sect 4.1 #1, 2, 3, 5, 6, 7, 8, 10, 16, 18, 19, 20(b)
  Sect 4.2 #1, 3, 6, 7, 8, 12, 16, 17, 19, 24, 31, 32

• Homework 10 due Tue 3/19:
  Sect 3.2 #11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 25, 26, 33, 34, 35, 40

• Homework 9 due Mon 3/4 at 5pm:
  Sect 3.1 #1, 2, 3, 4, 5, 6, 9, 10, 12, 25, 26, 27
  Sect 3.2 #5, 6, 7, 8, 21, 22

• Homework 8 due Thu 2/28:
  Sect 2.2 #1, 3, 5, 6, 7, 8, 13, 16, 18, 21, 31, 32
  Sect 2.3 #1, 2, 3, 4, 6, 8, 13, 14, 33, 34, 36
  Extra problem (you must turn this in): For the 2x2 matrix in Exercise 1 of Sect 2.3, express both the matrix and its inverse as products of elementary matrices.

• Homework 7 due Thu 2/21:
  Sect 1.9 #2, 4, 5, 7, 9, 10, 11, 12, 15, 17, 23, 24, 29
  Sect 2.1 #1, 3, 5, 7, 8, 9, 10, 17, 23, 24

• Homework 6 due Thu 2/14:
  Sect 1.7 #16, 18, 22, 33, 35, 36
  Sect 1.8 #1, 3, 5, 7, 10, 13, 15, 22
  Sect 1.9 #1, 2, 3, 4
  Sect 1.9 #1, 3, 6

• Homework 5 due Thu 2/7 Fri 2/8:
  Sect 1.7 #1, 2, 3, 5, 7, 8, 9, 10, 12, 16, 18, 22, 33, 35, 36

• Homework 4 due MON 2/4:
  Sect 1.4 #11, 12, 13, 14, 15, 22, 31
  Sect 1.5 #1, 2, 3, 4, 7, 11, 12, 18, 28, 29

• Homework 3 due 1/31:
  Sect 1.3 #5, 9, 10, 11, 12, 13, 14, 15, 16, 19, 20, 21, 24
  Sect 1.4 #1, 2, 3, 4

• Homework 2 due 1/24:
  Sect 1.2 #1, 3, 4, 11, 12, 14, 15, 16, 18, 22, 24
  Added 1/22: Sect 1.3 #1, 2, 3, 4
• Homework 1 due 1/17:
  Sect 1.1 #3, 4, 5, 7 , 9, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20

  Note: the odd-numbered ones are for practice; answers are in the back of your book. You only need to write up and turn in the even-numbered problems. Please write neatly and show all steps.

• I will not require that you use MyMathLab, the on-line homework system. However, if you purchased the text in the bookstore, you do have access to it, and I encourage you to use it for practice. I would be interested in what you think of it, especially compared to WebAssign.

  To start using it, read this.

This calendar contains due dates, exam dates, and the sections of the text covered each class. It is subject to change at any time. Check back frequently!