# Linear Algebra SPRING 2024

Course Website for Linear Algebra at SHNU in SPRING 2024

## About the Class

Linear algebra is the branch of mathematics concerning linear equations such as:

- $a_1x_1 + a_2x_2 + \cdots + a_nx_n = b$,

linear maps such as:

- $(x_1,\ldots,x_n)\rightarrow a_1x_1 + a_2x_2 + \cdots + a_nx_n$

In fact, it’s central to almost all areas of mathematics. In this course, we will follow the idea of solving linear equations $A\mathbf{x}=\mathbf{b}$ and introduce the four fundamental subspaces for the matrix $A$. Hence we’ll show the fundamental theorem of linear algebra.

Enjoy the class!

See the Syllabus page for more details on course policies.

## General Information

**Instructor:** Qizhe Yang, qzyang(at)shnu.edu.cn

**Time and Location:**

- For the class 1 of Computer Science and Technology (Teaching Training):
- 8:00 a.m.- 9:30 a.m. Every Monday in Week 1-16, 奉贤3教楼316
- 8:00 a.m.- 9:30 a.m. Every odd Friday in Week 1-15，奉贤3教楼101

- For the class 1 of Electronic Information:
- 13:00 p.m.- 14:30 p.m. Every Monday in Week 1-16, 奉贤3教楼416
- 8:00 a.m.- 9:30 a.m. Every even Friday in Week 2-16， 奉贤3教楼112

For more details about the class, see the Schedule page.

## Course Feedback

We have set up a course questionnaire:

Everyone is welcome to submit his/her questions or suggestions about this course.

**Updated in Jun 6, 2022**

Since we will finish the course in the next week, we have set up a new questionnaire for collecting the feedback of this course:

The questionnaire is not mandatory, but I will appreciate it if you can spend a few minutes to fill it out. Thank you!

# Announcements

## Week 15 Announcement

Hello, everyone!

The solution for Homework #14 for CS and Homework #14 for EI are now available.

Homework #15 for CS and Homework #15 for EI are now available.

**You don’t need to submmit this homework**. It’s just for your practice. And the solution is also available.Since we will finish our course soon, I have set up a new questionnaire for collecting the feedback of this course:

The questionnaire is not mandatory, but I will appreciate it if you can spend a few minutes to fill it out. Thank you!

## Week 14 Announcement

Hello, everyone!

I have upadted the full sildes of our course. You can download them from Linear Algebra.

Please see more information in Schedule.

## Week 14 Announcement

Hello, everyone!

Homework #14 for CS and Homework #14 for EI are now available.

The solution for Homework #13 for CS and Homework #13 for EI are now available.

Please see more information in Schedule.

## Week 13 Announcement

Hello, everyone!

Homework #13 for CS and Homework #13 for EI are now available.

The solution for Homework #12 for CS and Homework #12 for EI are now available.

Please see more information in Schedule.

## Week 12 Announcement

Hello, everyone!

Homework #12 for CS and Homework #12 for EI are now available.

The solution for Homework #11 for CS and Homework #11 for EI are now available.

Please see more information in Schedule.

## Week 11 Announcement

Hello, everyone!

Homework #11 for CS and Homework #11 for EI are now available.

The solution for Homework #10 for CS and Homework #10 for EI are now available.

Please see more information in Schedule.

## Week 10 Announcement

Hello, everyone!

Homework #10 for CS and Homework #10 for EI are now available.

The solution for Homework #9 for CS and Homework #9 for EI are now available.

Please see more information in Schedule.

Happy Labor Day!

## Week 9 Announcement

Hello, everyone!

Homework #9 for CS and Homework #9 for EI are now available.

The solution for Homework #8 for CS and Homework #8 for EI are now available.

Please see more information in Schedule

## Week 8 Announcement

Hello, everyone!

Homework #8 for CS and Homework #8 for EI are now available.

The solution for Homework #7 for CS and Homework #7 for EI are now available.

Please see more information in Schedule

## Week 7 Announcement

Hello, everyone!

Homework #7 for CS and Homework #7 for EI are now available.

The solution for Homework #6 for CS and Homework #6 for EI are now available.

Please see more information in Schedule

## Week 6 Announcement

Hello, everyone!

Homework #6 for CS and Homework #6 for EI are now available.

The solution for Homework #5 for CS and Homework #5 for EI are now available.

Please see more information in Schedule

## Week 5 Announcement

Hello, everyone. The solution of Homework #4 for CS and Homework #4 for EI has some mistakes in Problem 1,4 and 6. I have updated the corrected solution. Please check it again. Sorry for the inconvenience. See more information in Schedule.

## Week 5 Announcement

Hello, everyone!

The solution for Homework #4 for CS and Homework #4 for EI are now available.

I have updated both the solution for problem 1 in Homework #1 for CS and Homework #1 for EI.

See more information in Schedule.

## Week 5 Announcement

Hello, everyone!

- Homework #5 for CS and Homework #5 for EI are now available. See more information in Schedule.

## Week 4 Announcement

Hello, everyone!

- The solution for Homework #3 for CS and Homework #3 for EI are now available. See more information in Schedule.

## Week 4 Announcement

Hello, everyone!

- Homework #4 for CS and Homework #4 for EI are now available. See more information in Schedule.

## Week 3 Announcement

Hello, everyone!

- The solution for Homework #2 for CS and Homework #2 for EI are now available. See more information in Schedule.

## Week 3 Announcement

Hello, everyone!

- Homework #3 for CS and Homework #3 for EI are now available. See more information in Schedule.

## Week 2 Announcement

Hello, everyone!

- The solution for Homework #1 for CS and Homework #1 for EI are now available. See more information in Schedule.

## Week 2 Announcement

Hello, everyone!

- Homework #2 for CS and Homework #2 for EI are now available. See more information in Schedule.

## Week 1 Announcement

Hello, everyone!

- Homework #1 for CS and Homework #1 for EI are now available. See more information in Schedule.

## Week 0 Announcement

Welcome to the course of Linear Algebra!