Math 109, Mathematical Reasoning, Fall 2022

Instructor: Jason Schweinsberg (
TA: Yuzhe Bai (

Lectures: 3:00-3:50 PM on Mondays, Wednesdays, and Fridays, in Peterson Hall, Room 102.
Section E01: 6:00-6:50 PM on Wednesdays in AP&M, Room 2402
Section E02: 7:00-7:50 PM on Wednesdays in AP&M, Room 2402

Announcement for Waitlisted Students

Students who are waitlisted for Math 109 should attend lectures and keep up with the work and submit all assignments until your waitlist status is resolved.
Keep in mind that the first homework assignment is due on Friday, September 30, so it is too late to join the course after that point unless you have been keeping up with the work.

Useful Links (Some links may not work from within Canvas)

Here is a link to the course syllabus.
Here is a link to the page where you can find the course podcasts.
Here is a link to a page where you can access the course textbook, through the UC San Diego library.
Here is a link to the textbook website, which includes solutions to the problems whose number is a multiple of 3.
Here is a link to Canvas, where you can find the homework assignments and other information about the course.
Here is a link to some information on graduate programs, REU programs, and careers in mathematics and statistics.

Office Hours

Jason Schweinsberg (in Applied Physics and Mathematics, Room 6157): Wednesdays 4:15-5:30 PM, Thursdays 9:30-10:30 AM, Thursdays 3:30-5:00 PM.
Yuzhe Bai (in Humanities and Social Sciences, Room 4044): Tuesdays 5:00-6:00 PM, Wednesdays 12:00-1:00 PM, Thursdays 12:00-2:00 PM.

Students are also welcome to make appointments to meet with the instructor outside of regularly scheduled office hours, either in person or over Zoom. Please email the instructor if you are interested.