UCLA - Department of Mathematics
MATH 33B/2 - Differential Equations
Syllabus - Spring 2022 (tentative)
Instructor: Wumaier Maimaitiyiming
Email: wumaier@math.ucla.edu (When emailing me, please mention Math 33B-2)
Office: MS 7905
Office Hours: M @ 09:00 am-09:50 am, W @ 12:00 pm-12:50 pm, F @ 2:00 pm-2:50
pm (Or by appointment)
Class Meetings: Lecture will be on MWF @ 01:00-01:50 pm, MS 4000A
Course Text: Differential Equations with Boundary Value Problems, 2nd edition, by John
Polking, Albert Boggess, and David Arnold.
Course Website: https://bruinlearn.ucla.edu/courses/131411
Teaching Assistants:
BOSCHERT, NICHOLAS JAMES WORTHINGTON (email: nickboschert@math.ucla.edu,
office: MS XX, OH:XX-XX)
Discussion section Lec2 A: Tue, 01:00–01:50 pm, GEOLOGY 4645
Discussion section Lec2 B: Th, 01:00–01:50 pm, BOELTER 5264
NI, COLIN (email: colinni@math.ucla.edu, office: MS 3969, OH:XX-XX)
Discussion section Lec2 C: Tue, 01:00–01:50 pm, LAKRETZ 120
Discussion section Lec2 D: Th, 01:00–01:50 pm, GEOLOGY 6704
KOWALSKI, MATTHEW (email: mattkowalski@math.ucla.edu, office: MS 3921, OH: Th
12-1:00pm)
Discussion section Lec2 E: Tue, 01:00–01:50 pm, MS 6229
Discussion section Lec2 F: Th, 01:00–01:50 pm, LAKRETZ 120
Lecture recording:
The lectures will be recorded and embedded in Canvas. The recordings will be available
under Media Gallery on Canvas.
Course Description:
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We learn first-order linear/nonlinear differential equations; second-order linear differential
equations with constant coefficients; systems of linear differential equations. Detailed information on this course can be found at https://ww3.math.ucla.edu/courses
Prerequisites:
Requisites: course 31B with a grade of C- or better. Highly recommended: course 33A
Grading Policy:
Your grade will be calculated by taking the better of the following two schemes:
Scheme 1
Assessment Percentage
Participation 1%
Homework
10%
Quiz
10%
Midterm 1
20%
Midterm 2
20%
Final
29%
Scheme 2
Assessment
Participation
Homework
Quiz
One of the better midterms
Final
Percentage
1%
10%
10%
25%
54%
Your grades will be posted on Canvas. I do my best to update the grades on a regular
basis and keep everything accurate. However, it is your responsibility to double-check your
homework and midterm grades once they are posted. Any regrade request or discrepancy
complaint must be submitted within 48 hours of the grade appearing in the Gradebook, after
which your score is final and can no longer be changed (Regrade requests and discrepancy
complaints for any exam or homework should be submitted by Gradescope, giving a detailed,
relevant and clear explanation as to why you think your problem(s) need(s) to be regraded).
Grading Scale:
Letter grades will be assigned based on the following thresholds:
Letter
Percent
Letter
Percent
A
≥ 92%
C
≥ 72%
A≥ 90%
C≥ 70%
B+
≥ 88%
D+
≥ 68%
B
≥ 82%
D
≥ 62%
B≥ 80%
D≥ 60%
C+
≥ 78%
F
< 60%
Any course used to fulfill a requirement for a Mathematics degree, whether in preparation
for the Major, or in a Major, must be taken for a letter grade.
Participation:
You earn the 1% by completing the course evaluation at the end of the quarter. (Note: this
1% is NOT an extra credit)
Homework:
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• Homework will be assigned weekly (usually on Friday) and will be collected via Gradescope on the following Friday. All of the homework assigned the previous week is due
at that time.
• Homework will be posted on Canvas under ”Homework” , no late homework and no
make up homework are accepted. I will drop one homework score at the end of the
quarter.
• The reader will grade four problems, each out of five points. Up to five further points
will be awarded on the proportion of the remaining problems that are completed.
• You may and are encouraged to collaborate on the homework, however you need to
submit your own work and not simply copying answers from others. Making an honest
effort to understand how to solve problems will benefit you in this class.
Quizzes:
• There will be four quizzes, will take place on Fridays of weeks 2, 5, 7, and 9. Quizzes
will take place at the beginning of lecture, roughly 10 minutes.
• Quizzes will be graded based on the clarity and neatness of the presentation, as much
or more so than on the accuracy of the answer. You should view this as a chance to
see what is and is not acceptable when writing up solutions for an exam.
• Lowest quiz score will be dropped.
Exams: There will be two midterms and a final on the following dates:
• Midterm 1: Friday 04/22(Week 4)—6:00PM-6:50PM
Discussions 2A, 2B, 2C in Bunche 2209A.
Discussions 2D, 2E, 2F in Bunche 1209B.
• Midterm 2: Friday 05/20(Week 8)—6:00PM-6:50PM
Discussions 2A, 2B, 2C in Bunche 2209A.
Discussions 2D, 2E, 2F in Bunche 1209B.
• Final on Sunday, 06/05 at 11:30 AM - 2:30 PM.
The final exam will be cumulative. However, a larger portion of the questions will cover
the sections not covered for the midterm exams. The exams are in-person, closed book, and
closed notes exams.
Assignment submission:
All assignments will be handled online through Gradescope. You will be required to upload
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a PDF of your solutions. Although Gradescope currently allows both image files and PDF
files, you must use PDF files for this course. If you are planning on taking photos with
your phone rather than scanning your assignments as a pdf, you should use an online file
converter to change your images into pdf files before uploading to Gradescope. Once you
upload your pdf files properly, Gradescope will ask you to indicate which pages are used for
which questions. You must indicate this correctly to get credit for your assignments.
Tentative Course Schedule:
The following table will be updated as we progress through the course.
Weeks
Dates
Sections Covered
Events
Week 1 03/28-04/01
2.1, 2.2 , 2.4
HW 1
Week 2
04/4-04/07
2.4, 2.5, 2.6
Quiz1, HW 2
Week 3 04/11-04/15
2.6, 2.7
HW 3
Week 4 04/18-04/22
2.7, 2.9
Midterm1, HW 4
Week 5 04/25-04/29
4.1, 4.3, 4.5
Quiz2, HW 5
Week 6 05/02-05/06
4.5, 4.6, 9.8
HW 6
Week 7 05/09-04/13
9.1, 9.2,
Quiz3, HW 7
Week 8 05/16-05/20
9.2, 9.3
Midterm2, HW 8
Week 9 05/23-05/27
9.3, 9.4
Quiz4, HW 9
Week 10 05/30-06/03
9.5, 9.6
HW 10
Academic Integrity:
From the office of the Dean of Students: With its status as a world-class research institution,
it is critical that the University uphold the highest standards of integrity both inside and
outside the classroom. As a student and member of the UCLA community, you are expected
to demonstrate integrity in all of your academic endeavors. Accordingly, when accusations of
academic dishonesty occur, The Office of the Dean of Students is charged with investigating
and adjudicating suspected violations. Academic dishonesty includes, but is not limited to,
cheating, fabrication, plagiarism, multiple submissions or facilitating academic misconduct.”
Students are expected to be aware of the University policy on academic integrity in the
UCLA Student Conduct Code Please note the sections on (1) cheating, (2) plagiarism, and
(3) unauthorized study aids.
Notice About Sexual Harassment, Discrimination, and Assault:
Title IX prohibits gender discrimination, including sexual harassment, domestic and dating
violence, sexual assault, and stalking. Students who have experienced sexual harassment or
sexual violence can receive confidential support and advocacy from a CARE advocate:
The CARE Advocacy Office for Sexual and Gender-Based Violence
1st Floor, Wooden Center West
CAREadvocate@caps.ucla.edu
(310) 206-2465
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You can also report sexual violence or sexual harassment directly to the University’s Title
IX Coordinator:
Kathleen Salvaty
2241 Murphy Hall
titleix@conet.ucla.edu
(310) 206-3417
• This syllabus is subjected to adjustment by the instructor, with notice given to the
students.
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