MATH 204 - Fall 2017
Linear Algebra

Professor: Erika L.C. King
Email: eking@hws.edu
Office: Lansing 304
Phone: (315) 781-3355
Home Page

Office Hours: M: 10:30am-Noon, W: 4:00-5:15pm, Th: 11:15am-12:45pm, F: 11:00am-Noon, and by appointment
Class Schedule: held MWF 1:55-2:50pm in Stern 303
Course Syllabus
Proof Writing and Presentation Tips
Course Grade Scale

WeBWorK Home Page for Our Class
WeBWorK Instructions and FAQs
WeBWorK Syntax and List of Functions


WEEK 14: November 27 - December 1

Have a great Thanksgiving break!

Since we just had an exam and then break, we will NOT have a quiz this week!

Homework for class Monday, November 27:

Collected Homework (Due Friday, December 1 at 1:55pm):


WEEK 13: November 20 - November 21

WeBWorK due Saturday, November 18 at 1:00pm:

Homework for class Monday, November 20:


WEEK 12: November 13 - November 17

Quiz 8 will take place on Monday at the beginning of class. It will cover Sections 4.2 and 4.3. Be prepared to state definitions and theorems, give examples with explanations, and complete short exercises.

Homework for class Monday, November 13:

Remember there is a colloquium on Tuesday, November 14th at 4:45 in Napier 101 about mathematical phylogenetics and the Mathematical Phylogenetics Scholars Program! You can earn up to five bonus points towards your homework grade for attending!

Homework for class Wednesday, November 15:

Collected Homework (Due Friday, November 17 at 1:55pm):

Homework for class Friday, November 17:

WeBWorK due Saturday, November 18 at 1:00pm:


WEEK 11: November 6 - November 10

Quiz 7 will take place on Monday at the beginning of class. It will cover Sections 4.1 and 4.2. Be prepared to state definitions and theorems, give examples with explanations, and complete short exercises.

Homework for class Monday, November 6:

My meeting was moved, so my Wednesday office hours are the same as usual!!! Due to another commitment, however, I will likely need to change part of my Thursday office hours.

Homework for class Wednesday, November 8:

Due to a meeting, my Thursday office hours are slightly morphed. They will be 10:30-10:50am and 12:15pm-1:15pm.

BONUS ASSIGNMENT due Wednesday, November 8 at 1:55pm:

You may earn up to 8 points back on your second exam. Please read this in detail as the rules are different from the homework rewrite rules! Here are the rules:

Collected Homework (Due Friday, November 10 at 1:55pm):

Homework for class Friday, November 10:


WEEK 10: October 30 - November 3

Quiz 6 will take place on Monday at the beginning of class. It will cover Section 4.1. Be prepared to state definitions and theorems, give examples with explanations, and complete short exercises.

Homework for class Monday, October 30:

BONUS ASSIGNMENT due Wednesday, November 1 at 1:55pm:

You may rewrite one of the proofs from the homework for Week 8 to win points toward your homework score. Here are the rules:

Homework for class Wednesday, November 1:

Collected Homework (Due Friday, November 3 at 1:55pm):

Homework for class Friday, November 3:


WEEK 9: October 23 - October 27

WeBWorK due Sunday, October 22 at 7:30pm:

Homework for class Monday, October 23:

BONUS ASSIGNMENT due Wednesday, October 25 at 1:55pm:

You may rewrite one or two of the proofs from the homework for Week 6 to win points toward your homework score. Here are the rules:

Homework for class Wednesday, October 25:

Collected Homework (Due Friday, October 27 at 1:55pm):

Homework for class Friday, October 27:


WEEK 8: October 16 - October 20

Quiz 5 will take place on Monday at the beginning of class. It will cover Sections 2.1, 2.2 and 2.3. Be prepared to state definitions and theorems, give examples with explanations, and complete short exercises.

Optional Chance to Rework Homework Question: If you would like to present me with a new version of Problem 1 from your homework due Friday, October 13, I am inviting you to turn in a new version by the beginning of class on Monday. Keep in mind the reminders that were mentioned in question 4. It would be great if everyone was able to really nail this proof!

Homework for class Monday, October 16:

Homework for class Wednesday, October 18:

Collected Homework (Due Friday, October 20 at 1:55pm):

Homework for class Friday, October 20:


WEEK 7: October 11 - October 13

Have a great fall break!

Since we have fall break this week, we will NOT have a quiz!

Homework for class Wednesday, October 11:

Collected Homework (Due Friday, October 13 at 1:55pm):

Homework for class Friday, October 13 (Happy Friday the 13th!):


WEEK 6: October 2 - October 6

Quiz 4 will take place on Monday at the beginning of class. It will cover Sections 1.8 and 1.9. Be prepared to state definitions and theorems, give examples with explanations, and complete short exercises.

Homework for class Monday, October 2:

Homework for class Wednesday, October 4:

Collected Homework (Due Friday, October 6 at 1:55pm):

Homework for class Friday, October 6:


WEEK 5: September 25 - September 29

Homework for class Monday, September 25:

Office hours are moved from Wednesday to Tuesday this week! I will have office hours 11:30am-12:30pm on Tuesday and no hours on Wednesday.

Homework for class Wednesday, September 27:

Collected Homework (Due Friday, September 29 at 1:55pm):

Homework for class Friday, September 29:


WEEK 4: September 18 - September 22

Quiz 3 will take place on Monday at the beginning of class. It will cover Sections 1.4 and 1.5. Be prepared to state definitions and theorems, give examples with explanations, and complete short exercises.

Homework for class Monday, September 18:

Office hours are moved from Wednesday to Tuesday this week! I will have office hours 11:30am-12:30pm on Tuesday and no hours on Wednesday.

Homework for class Wednesday, September 20:

Collected Homework (Due Friday, September 22 at 1:55pm):

Homework for class Friday, September 22:


WEEK 3: September 11 - September 15

Quiz 2 will take place on Monday at the beginning of class. It will cover Sections 1.2 and 1.3. Be prepared to state definitions and theorems, give examples with explanations, and complete short exercises.

Homework for class Monday, September 11:

Homework for class Wednesday, September 13:

Collected Homework (Due Friday, September 15 at 1:55pm):

Homework for class Friday, September 15:


WEEK 2: September 4 - September 8

Quiz 1 will take place on Monday at the beginning of class. It will cover Sections 1.1 and 1.2. Be prepared to state definitions and theorems, give examples with explanations, and complete short exercises.

Homework for class Monday, September 4:

Homework for class Wednesday, September 6:

Collected Homework (Due Friday, September 8 at 1:55pm):

Homework for class Friday, September 8:


WEEK 1: August 28 - September 1

Welcome to Linear Algebra!!!

Collected Homework (Due Tuesday, August 29 by 2:30pm):

Homework for class Wednesday, August 30:

Collected Homework (Due Friday, September 1 at 1:55pm):

Homework for class Friday, September 1:



Hobart and William Smith Colleges: Department of Mathematics and Computer Science
Erika L.C. King