MTuWTh 2pm-3:20pm PDT RCLAS
Lecture videos and discussion recordings will be available on Canvas.
The tentative plan is to offer pre-recorded lectures and the regular lecture hours will be mostly discussions in a more casual form. Watching lecture videos before the regular lecture hours are encouraged but not mandatory.
SI leader: Quinn Nguyen. qnnguyen "at" ucsd.edu
SI sessions: TuTh 4:30-5:50pm. See Zoom links in "Supplemental Instruction" on Canvas.
Linear Algebra and Its Applications (Sixth Edition), David C. Lay, Judi J. McDonald and Steven R. Lay. Pearson 2021, ISBN-10: 0135851157, ISBN-13: 978-0135851159.
(The fifth edition is also fine, as it essentially has the same contents.)
MyLab is not required as we are using traditional homework style. All the homework problems will be typed up.
We aim to cover Chapter 1-6 of the textbook.
Topics will include: Matrix algebra, Gaussian elimination, determinants. Linear and affine subspaces, bases of Euclidean spaces. Eigenvalues and eigenvectors, quadratic forms, orthogonal matrices, diagonalization of symmetric matrices. Applications. Solve real-life problems using MATLAB.
Students may not receive credit for both Math 18 and 31AH.
Instructor: Zilu Ma. zim022 "at" ucsd.edu
Office hours: TuTh 7-8pm PDT. See Zoom link on Canvas
TA (B01, B02): Hangran Zhang. haz355 "at" ucsd.edu
Office hours: M 5-6 pm PDT. See Zoom link on Canvas
TA (B03, B04): Yifan Xiao. yix001 "at" ucsd.edu
Office hours: Th 6-7pm PDT. The Zoom link is the same as discussion B03, B04 on Canvas.
Homework will be in the forms of old-fashioned paper-and-pen and they should be submitted to Gradescope.
Here is a video showing how to submit your work, and you can read detailed instructions here.
We will have three exams in total. The two midterms will be 60 minutes long and the final will be old-fashioned 3 hours. Tentatively, each midterm will be offered in two different time slots. One will be during the lecture 2-3pm and the other one is 9-10pm (tentative). For the final, we will make a survey to decide on the other time slot different from the assigned 3-6pm. Please understand that the exams for different time slots will be different but are on the same difficulty level. For each exam, you can feel free to pick one (and only one) time slot to take it.
Follow-up AI checks via Zoom: Our TAs will pay attention to any possible signs of academic misconduct during grading the exam. Any student may be asked to a follow-up Zoom meeting in which they will be asked to justify their work on the exam and show that it was their own work. If the follow-up is unconvincing, or the student is unable or unwilling to engage, their exam will be forwarded to the AI Office for further evaluation.
In applications of linear algebra, the theoretical concepts that you will learn in lecture are used together with computers to solve large scale problems. Thus, in addition to your written homework, you will be required to do homework using the computer language MATLAB.
The Math 18 MATLAB Assignments page contains all information relevant to the MATLAB component of Math 18, including due dates.
MATLAB HW due dates are the same as regular assignments and please submit them to the correct Gradescope page.
You can make use of UCSD's MATLAB site license to install MATLAB on your own computer by visiting the MATLAB for UCSD Students page. Questions regarding the MATLAB assignments should be directed to MATLAB TA . Remember to include which class you are in (Math 18 B00) because the MATLAB TA coordinates the MATLAB part for all Math 18 and 20D classes.
Your final grades will be determined by your cumulative average using the following grading scheme, and will be based on the following cutoffs.
30% Homework, 30% Best Midterm, 30% Final Exam, 6% MATLAB HW, 4% MATLAB Final Quiz.
A+ | A | A- | B+ | B | B- | C+ | C | C- |
97 | 93 | 90 | 87 | 83 | 80 | 77 | 73 | 70 |