Math 235: Linear Algebra

Spring 2018

General Information

Instructor: Chris Staecker (Personal Homepage)

Email: cstaecker@fairfield.edu

Office: BNW 16

Office Hours: T 10:30-11, 12-12:30, 1:30-2:30; W 10-11, 12-1, 2-3; F 10:30-11, 12-12:30 or by appointment

Textbook: Shifrin & Adams, Linear Algebra: A Geometric Approach (second edition)

Class Meetings: TWF 11:00-11:50 BNW 127

Final Exam: Thursday, May 10, 8:00AM

Other Stuff

Tests & Homework

1/24: Homework #1 due
Section 1.1: 2, 4 (just do one triangle), 5, 6abdfh, 9a, 10c, 13, 25a
Section 1.2: 1ac, 3, 4, 6, 13 (don't "interpret", just prove it)
Selected solutions PDF
1/31: Homework #2 due
Section 1.3: 3ab, 6
Section 1.4: 2 (just say if it's RREF), 3ef (just find the RREF)
Selected solutions PDF
2/7: Homework #3 due
Section 1.4: 4bd, 7a, 11b
Section 1.5: 2a, 3b, 8a, 12abde
Section 1.6: 5 (see "example 2" for inspiration)
Selected solutions PDF
2/14: Homework #4 due
Section 2.1: 1agh, 6bc, 8ac (do the induction), 12abd, 13a
Selected solutions PDF
2/21: Homework #5 due
Section 2.2: 1, 2, 4acd, 6, 11c
Selected solutions PDF
2/23: Exam #1
 
2/28: Homework #6 due
Section 2.3: 1abd, 2a (just i and ii), 3ab
Selected solutions PDF
3/7: Homework #7 due
Section 2.4: 3be, 6a
Section 2.5: 1ad, 2ab, 5 ("symmetric" means A = AT), 6, 20a
Selected solutions PDF
3/21: Homework #8 due
Section 3.1: 1beg, 4, 5, 6, 15a
Selected solutions PDF
3/28: Homework #9 due
Section 3.2: 4b, 7a
Section 4.1: 10 (don't discuss the errors)
Selected solutions PDF
4/4: Homework #10 due
Section 3.3: 1, 2abc, 3cd, 4a, 8
Selected solutions PDF
4/6: Exam #2
 
4/18: Homework #11 due
Section 3.6: 1, 2ab, 3acf, 6be (for 3 & 6, just say if it's a subspace)
Selected solutions PDF
4/25: Homework #12 due
Section 5.1: 1ac, 10, 11
Section 6.1: 1ah (just find the eigenvalues)
Selected solutions PDF
5/2: Homework #13 due
Section 6.1: 1ah (you did the eigenvalues last week), 3
Section 6.3: 1 (leave k as a variable), 4 (don't "be sure"), 7 (this is like Fibonacci- make a matrix, then diagonalize)
Do the survey!
Please do the online course evaluation
5/10, 8:00AM: Final exam