MAT 310: Linear Algebra
Fall 2025

MAT 315

Information about MAT 315 can be found here.

Look at the syllabus

If you have any questions about the class, please look in the syllabus. There is a good chance your question will be answered there. If it isn’t, please feel free to email the instructor or TA.

Announcements

All announcements will be posted on Brightspace.

Lecture notes

The lecture notes can be accessed here and will be updated continuously as the course proceeds.

Here are the notes for just the most recent lecture.

Here are the notes for the first five lectures

Lecture plan and homework

Note: this lecture plan is tentative and will be continuously updated to adapt to the pace of the course.

The listed homework problems are references to the problems in the exercise sections from the course textbook (Linear Algebra Done Right, Fourth edition).

Course description

Finite dimensional vector spaces, linear maps, dual spaces, bilinear functions, inner products. Additional topics such as canonical forms, multilinear algebra, numerical linear algebra.

Credits: 4

Prerequisites: C or higher in MAT 211 or 305 or 308 or AMS 210; C or higher in MAT 200 or MAT 250 or permission of instructor

Textbook

Sheldon Axler, Linear Algebra Done Right, Fourth edition
Available for free on the author’s website

MAT 310 and MAT 315

This page, Brightspace, Gradescope

Most information and material related to the course will be posted on this page.

The exceptions are:

• Gradescope will be used to submit homework assignments, and to see your graded homework.
• Brightspace will be used to make announcements, and solutions to problem sets will also be posted there.
• Email should be used to email to contact the instructor or TA.

Grading scheme

The final percentage grade will be computed as follows.

The percentage ranges for letter grades are as follows:

The final assignment of the letter grades may differ from the above ranges, but only by increasing the letter grades. That is, if your percentage grade falls in one of the above ranges, your letter grade will be at worst the one indicated above.

A grade of “Incomplete” can only be assigned in cases where the instructor is informed of a valid reason for missed work.

Homework

Homework assignments will be assigned on a weekly basis.

Homework is to be submitted on Gradescope (you should see the course there if you are enrolled; if you have any problems, please inform the instructor or TA). When you submit on Gradescope, please don’t forget to match your scanned pages with the problems. If you do forget, the grader may not see your submission for the problem, and it may not be graded.

You may work with other students on the homework, but you must hand in your own write-ups. Stony Brook policy prohibits you from directly copying online sources.

Homework must be submitted by the posted due dates. If you expect to have issues submitting the homework on time, or if you are having difficulties with gradescope, please write to the instructor or TA as soon as possible, and attach a scanned copy of your submission (this is a wise practice for any class).

Each week, a collection of problems will be selected by the instructors to be graded from the homework. It is in your best interest to complete all assigned problems since you will not know which problems will be graded in advance. Your work will be graded on having well-structured and clear arguments and computations, in addition to finding the correct answer.

Your lowest three scores from the homeworks will be dropped.

LaTeX

LaTeX is an open source software system for preparing documents that is particularly well-suited for writing and formatting mathematical formulas. It is very popular among mathematicians and scientists, and is the standard tool in mathematics for writing research papers.

You are encouraged though not required to type up your homework using LaTeX ; if you do not already use it, learning it now will serve you well in the long term! To encourage you to use it, you can earn up to 2% bonus points if you typeset two homework assignments in LaTeX (or up to 1% if you do one).

An easy way to get started with LaTeX is to use the website Overleaf.com. Here is their guide for getting started with LaTeX : https://www.overleaf.com/learn. The instructor will also be happy to give you a LaTeX tutorial during office hours.

Exams

• The first midterm will be on Wednesday, October 1, in class (e.g., at the usual time 9:30-10:50am, in the usual place Javits Lecture Center 111).
  
• The second midterm will be on Wednesday, November 12, in class (e.g., at the usual time 9:30-10:50am, in the usual place Javits Lecture Center 111).
  
• The final exam will be held on Wednesday, December 10 from 11:15 am to 1:45 pm, Javits Lecture Center 111, as per the Stony Brook exam schedule.

All three exams are closed book, closed notes exams, with no calculators or other electronic aids permitted. The final exam will cover all topics from the semester, but will have greater emphasis on topics developed after the midterms.

Make-up policy:

Make-up examinations are given only for work missed due to unforeseen circumstances beyond the student's control.

Extra credit policy:

It will not be possible to earn any extra credit outside of the grading scheme given above. Therefore, if you are concerned about your performance in the class, alert the instructor or TA as early as possible so that they help you in whatever way they can to help you succeed.

Required syllabus statements

Student Accessibility Support Center Statement

If you have a physical, psychological, medical, or learning disability that may impact your course work, please contact the Student Accessibility Support Center, Stony Brook Union Suite 107, (631) 632-6748, or at sasc@stonybrook.edu. They will determine with you what accommodations are necessary and appropriate. All information and documentation is confidential.