MAT 2580 Linear Algebra

Professor Poirier | D710 | Fall 2026

Week 3 checklist

September 14, 2026 / / 0 Comments

Monday, September 14 to Sunday, September 20

Lessons

  • 2.1 Matrix Addition and Scalar Multiplication
  • 2.2 Matrix Multiplication
  • 2.3 The Transpose
  • 2.4 The Identity Matrix and Matrix Inverses
  • 2.5 Finding the Inverse of a Matrix The Inverse of a Matrix (part 1, if time)

WeBWorK

Due Sunday, September 20 11:59pm

  • Matrix Operations
  • The Inverse of a Matrix

OpenLab

Due Sunday, September 20 11:59pm

  • [Group post] Choose one member’s version of problem 6 or 7 of the WebWorK set Gaussian Elimination and determine the full solution as a group. The secretary will post your group’s full solution on the OpenLab
    • Title: Gaussian Elimination problem [6 or 7]
    • Category: Gaussian Elimination

Other

  • Next Monday, September 21 is a holiday; we’ll see each other on Wednesday only

Intro

September 12, 2026 / / 0 Comments

I’m Eric and Computer Engineering Technology is my major. Because I enjoyed learning about computers and technology and studied something similar in high school, I became interested in this major. I want to start a profession in computer engineering after I graduate from City Tech. Going to the gym is one of my hobbies that I like to do in my spare time. I enjoy working with my hands and creating things especially when I get to understand how something functions. History is one subject I struggle with since I occasionally find it difficult to recall all the many dates and events. I am excited to continue working toward my degree and learning more throughout this semester.

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