You are allowed and encouraged to work together on homework. Yet, each student is expected to turn in their own work. In general, late homework will not be accepted. However, you are allowed to turn in up to two late homework assignments. Reviewing material from previous courses and looking up definitions and theorems you may have forgotten is fair game. However, when it comes to completing assignments for this course, you should not look to resources outside the context of this course for help. That is, you should not be consulting the web, other texts, other faculty, or students outside of our course in an attempt to find solutions to the problems you are assigned. This includes Chegg and Course Hero. On the other hand, you may use each other, the textbook, me, and your own intuition. If you feel you need additional resources, please come talk to me and we will come up with an appropriate plan of action. Please read NAU’s Academic Integrity Policy.


I reserve the right to modify an assignment if the need arises.

  • Homework 1: Read the syllabus and write down 5 items that you think are important. Note: All of the exam dates only count as a single item. (Due Wednesday, August 31)
  • Homework 2: Create a free Discord account, accept the invite to our Discord server, and post something about yourself in the #introductions channel. (Due Wednesday, August 31)
  • Homework 3: Complete the problems found here. (Due Wednesday, September 7)
  • Homework 4: Complete the problems found here. (Due Wednesday, September 14)
  • Homework 5: Complete the problems found here. (Due Wednesday, September 21)
  • Homework 6: Complete the problems found here. (Due Wednesday, September 28)
  • Homework 7: Complete the problems found here. (Due Wednesday, October 5)
  • Homework 8: Complete the problems found here. (Due Wednesday, October 19)
  • Homework 9: Complete the problems found here. (Due Wednesday, October 26)
  • Homework 10: Complete the problems found here. (Due Friday, November 4)
  • Homework 11: Complete the problems found here. (Due Wednesday, November 16)
  • Homework 12: Complete the problems found here. This assignment is optional. If you choose to complete this assignment, your score on this assignment will replace your lowest score on a previous assignment, possibly one you did not complete. (Due Wednesday, December 7)

Dana C. Ernst

Mathematics & Teaching

  Northern Arizona University
  Flagstaff, AZ
  Google Scholar
  Impact Story

Current Courses

  MAT 226: Discrete Math
  MAT 690: CGT

About This Site

  This website was created using GitHub Pages and Jekyll together with Twitter Bootstrap.

  Unless stated otherwise, content on this site is licensed under a Creative Commons Attribution-Share Alike 4.0 International License.

  The views expressed on this site are my own and are not necessarily shared by my employer Northern Arizona University.

  The source code is on GitHub.

Land Acknowledgement

  Flagstaff and NAU sit at the base of the San Francisco Peaks, on homelands sacred to Native Americans throughout the region. The Peaks, which includes Humphreys Peak (12,633 feet), the highest point in Arizona, have religious significance to several Native American tribes. In particular, the Peaks form the Diné (Navajo) sacred mountain of the west, called Dook'o'oosłííd, which means "the summit that never melts". The Hopi name for the Peaks is Nuva'tukya'ovi, which translates to "place-of-snow-on-the-very-top". The land in the area surrounding Flagstaff is the ancestral homeland of the Hopi, Ndee/Nnēē (Western Apache), Yavapai, A:shiwi (Zuni Pueblo), and Diné (Navajo). We honor their past, present, and future generations, who have lived here for millennia and will forever call this place home.