Math 215  Introduction to Linear Algebra
Spring 2013
Instructor:
Kevin
Lin
Office: Math 619
Course web page (this page):
Office hours:

There are additional resources on the math department's Math 215 page. Also check out the tutoring service, as well as these short videos on specific topics from the Khan Academy.
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 4/16Thu 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 "changeofcoordinates 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 2/7Fri 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, 20Note: the oddnumbered ones are for practice; answers are in the back of your book. You only need to write up and turn in the evennumbered problems. Please write neatly and show all steps.
 I will not require that you
use MyMathLab,
the online 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!
This page was last updated on September 16, 2018.