Fall 2021

Math 3120 Introduction to Linear Algebra

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General Information, Syllabus, Assessment and Test Dates

Undergraduate Catalog Description: Matrices, row operations with matrices, determinants, systems of linear equations, vector spaces, linear transformations, inner products, eigenvalues and eigenvectors. Credit not given for both Math 3110 and Math 3120. Prerequisites: Math 2530 and and Math 2660.

Important: the official class syllabus is available on Canvas. Read it.


Vectors, Matrices, Vector Spaces and Linear Transformations are the principal objects of study in this course in linear algebra. General objectives:
  • Develop a thorough understanding of the concepts and techniques of linear algebra
  • Further develop the ability to apply your knowledge to solve problems
  • (Further) develop skills for working effectively with others on mathematics problems

Student Learning Objectives

  1. Students will be able to demonstrate the ability to write formal definitions of fundamental concepts of the course, e.g., linear independence, vector space, subspace, determinant, linear transformation, inner product, eigenvalues, eigenvectors.
  2. Students will be able to demonstrate the ability to perform the basic computations of linear algebra, e.g., row reduction of matrices, solving linear systems of equations, finding inverses of matrices, computing determinants, finding eigenvalues and eigenvectors.
  3. Students will be able to demonstrate the ability to prove basic results about fundamental concepts of the course.
  4. Students will be able to demonstrate the ability to correctly write the statements of important theorems.
  5. Students will be able to demonstrate the ability to recognize when and how to apply important theorems.
  6. Students will be able to demonstrate the ability to work with and devise examples that illustrate basic concepts of the course.
  7. Students will be able to demonstrate readiness for more advanced study of algebraic structures and other areas of mathematics that use linear algebra.

Topics Covered

Chapter 1: Systems of Linear Equations
Chapter 2: Linear Independence and Dimension
Chapter 3: Linear Transformations
Chapter 4: Determinants
Chapter 5: Eigenvectors and Eigenvalues
Chapter 6: Orthogonality


1.Homework and group work20%
4.Final Examination28%

Each group work must be completed. It must be submitted in class on paper by the first listed deadline, and any corrections must be submitted by the final listed deadline. The deadlines are provided in Canvas.

Each online WeBWorK homework assignment must be completed by the listed deadline.

Important: the dates listed below are subject to adjustment, for example, if SLU calls a short halt to classes to provide time to transition from in-person classes to online classes.

Test Schedule

Test 1: Monday, October 4 (revised date)
Test 2: Wednesday, October 27 (revised date)
Test 3: Wednesday, December 1
Final: Thursday, December 16, at 12 p.m.