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- [20190218] Course website for Math104/GEAI1209 here.
- [20190112] Final exam scores available at NSYS Cyber University.
- [20190111] You may stop by my office SC2002-5 to check your final exam paper on 2:00 pm – 5:00 pm, each day from Jan 12 (Sat) to Jan 15 (Tue).
- [20181226]
**Final Exam** **10:10 am – 12:00 noon**
Time: Jan 7, Monday; - Location: SC0014
**110 minutes**
Duration: - here) Coverage: From VotingParadoxes to Three.II + Midterm1 + Midterm2 (see lecture notes
- here) Materials for review: SampleQuestions 9~14 + Midterm1 + Midterm 2 (find them
- Note: Please bring your student ID
- Note: About 1 question from Midterm1 and 1 question from Midterm2
- [20181218] Lecture videos for week 15 available here. (All videos have been uploaded on Dec 19.)
- [20181217]
**No classes**Dec 17 (Mon), Dec 20 (Tue), and Dec 22 (Sat). Lecture videos will be provided soon for these days. Don't hesitate to send me an email or stop by my office if you have any question. - [20181121] Final exam will have 35 total points plus 7 extra points.
- [20181121] Midterm2 scores available at NSYS Cyber University.
- [20181109]
**Midterm 2** - Time: Nov 19, Monday
- Location: SC0014, in class
- Duration: 110 minutes
- Coverage: MatrixInverse and Chapter Two, except Two.III.4
- here) Materials for review: SampleQuestions 4~8 (find them
- Note: Please bring your student ID
- [20181009] Midterm1 scores available at NSYS Cyber University.
- [20181001]
**Midterm 1** - Time: Oct 8, Monday
- Location: SC0014, in class
- Duration: 110 minutes
- Coverage: Chapter One
- here) Materials for review: SampleQuestions 1~3, SampleMidterm1 (find them
- Note: Please bring your student ID
- [20180929] Office hours on Oct 2 (Tuesday) moved to Oct 4 (Thursday) 10:10 am – 12:00 noon.
- [20180918] Location change of the recitation.
- [20180917] Time changes of office hours after Sep 24.
- [20180917] No class on Sep 24, Monday (Mid-Autumn Festival).
- [20180908] No recitation on Monday afternoon (Sep 10).
- [20180820] Welcome to the course! Future announcements will be posted here.

**Term:**Sep 10, 2018 – Jan 11, 2019**Lecture:**Monday, 10:10 am – 12:00 noon @ SC0014**Lecture:**Thursday, 9:10 am – 10:00 am @ SC0014**Recitation:**Monday, 4:10 pm – 5:00 pm @ SC0012

**Instructor:**Jephian Lin | 林晉宏**Email:**chlin [at] math.nsysu.edu.tw**Office:**SC2002-5**Office Hours:**Tuesday, 10:10 am – 12:00 noon

**TA:**顏仕庭 助教**Email:**ba124642738 [at] gmail.com**Office:**SC2003-1**Office Hours:**Friday, 1:10 pm – 3:00 pm

*Linear Algebra* [pdf answers]

Jim HefferonCourse website

*Essence of linear algebra* (YouTube playlist; we watched chapter 2 on 11/5)

3Blue1Brown

Linear algebra is motivated by solving a system of linear equations. In this course, you will learn how to solve a system of linear equations with a general strategy---the echelon form. Through echelon form, we are able to read the essential information of the equations (basis and rank) and the solutions (null space and nullity). The equations and the solutions can be described by vector spaces. We will learn how to find the basic information of a vector space, including the basis, the rank, and the operations on them. We will study the maps between vector spaces and learn how to write down a matrix representation for them.

- Linear Systems
- Vector Spaces
- Maps Between Spaces

30% Midterm1 + 35% Midterm2 + 35% Final exam

No homework and quizzes. Sample questions will be posted weekly for you to prepare the exams.

- SampleQuestions1 [ pdf solution ]
- SampleQuestions2 [ pdf solution ]
- SampleQuestions3 [ pdf solution ]
- SampleMidterm1 [ pdf solution ]
- Midterm1-A [ pdf solution ]
- Midterm1-B [ pdf solution ]
- SampleQuestions4 [ pdf solution ]
- SampleQuestions5 [ pdf solution ]
- SampleQuestions6 [ pdf solution ]
- SampleQuestions7 [ pdf solution ]
- SampleQuestions8 [ pdf solution ]
- Midterm2-A [ pdf solution ]
- Midterm2-B [ pdf solution ]
- SampleQuestions9 [ pdf solution ]
- SampleQuestions10 [ pdf solution ]
- SampleQuestions11 [ pdf solution ]
- SampleQuestions12 [ pdf solution ]
- SampleQuestions13 [ pdf solution ]
- SampleQuestions14 [ pdf solution ]
- Final-A [ pdf solution ]
- Final-B [ pdf solution ]

Here are the Kahoot! quizzes we played in the class.

Students with diverse learning styles and needs are welcome in this course. In particular, if you have a disability/health consideration that may require accommodations, please feel free to approach me.

Percentage scores will be converted to letter grades according to the university-wide standard table

You are expected to attend the classes.

If you miss some course components due illness, accident, family affliction, or religious observances, please talk to me and provide the documentation. In such cases, the course component is excused, and your course score will be calculated by distributing the weight of the missed item(s) across the other course components. Missing components are limited to at most 20%.