First and second order differential equations, separation of variables, linear differential equations, systems of first order equations, nonlinear differential equations and stability.

Prerequisites: Math 4A or Math 4AI with a minimum grade of C.

4

Units

Optional

Grading

1

Passtime

Undergraduate students only

Level Limit

Letters and science

College
Unlocks CH E 110B CH E 132A EARTH 135 EARTH 133 ECE 130C
These majors only math cmpsc ece me phys stats cneng crstu
YANG XU
XU Yang
2.7
42 reviews
AI predicted, based on past grading trends of the course and instructor, class info, and 127 other factors
SH 1609
W
08:00 AM - 08:50 AM
23 / 25
LSB 1101
W
12:00 PM - 12:50 PM
25 / 25 Full
ILP 3205
W
16:00 PM - 16:50 PM
24 / 25
HSSB 2251
W
17:00 PM - 17:50 PM
24 / 25
BUCHN1934
W
18:00 PM - 18:50 PM
24 / 25
BUCHN1934
W
19:00 PM - 19:50 PM
22 / 25
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Winter 2026 . Yang F
TD-W 1701
T R
08:00 AM - 09:15 AM
Winter 2024 . Zhang Q
LSB 1001
M W F
10:00 AM - 10:50 AM
See All
MATH 4B Yang F Fall 2024 Total: 137
MATH 4B Chiang H Fall 2025 Total: 145
See All
42
2.7
MATH4B . Yang Xu A Month Ago

You get a good grade if you work hard on this course.

0 helpful 0 unhelpful
MATH4B . Yang Xu A Month Ago

Easy Midterm One and Difficult Midterm Two, but you will pass this course smoothly if you work hard on reviewing the lecture notes and two midterms before the final exam.

0 helpful 0 unhelpful
MATH4B . Yang Xu 6 Months Ago

Lectures were a bit all over the place, I did a lot of self-studying. The course was almost entirely graded by just a midterm (there were 2 and the lower score was dropped) and the final, and some homework points. One midterm was really easy and one was really hard for some reason (didn't matter). Final was reasonable, and cutoff for an A was 92.

0 helpful 0 unhelpful
MATH4B . Yang Xu 6 Months Ago

Makes almost no sense during lecture - I taught myself a majority of the material. TA's are super helpful, as they teach you patterns to recognize for exams. The exams themselves are worth 30 and 50% of your grade, so each question is either worth 1 or 2.5 percent of your overall grade. Though, the exams were pretty easy compared to the homework.

0 helpful 0 unhelpful
MATH4B . Yang Xu 7 Months Ago

Two midterms, the lowest one is dropped. Weekly homework, the lowest one is dropped. All the exams weren't too difficult, but his handwriting during the lecture was not great.

0 helpful 0 unhelpful
MATH4B . Yang Xu 7 Months Ago

Very easy all mcq midterms and final. lowest midterm dropped. hw due weekly online. TA resources were extremely helpful and I never went to lectures. Not the best teacher with confusing lectures so I didn't bother going.

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See all 42 reviews
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11:00 AM - 11:50 AM
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Calculus with Applications, Second Course
Benjamin Sung 2.0
M W F
08:00 AM - 08:50 AM
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796 / 800 Enrolled
Linear Algebra with Applications
Denis Labutin 2.8
M W F
13:00 PM - 13:50 PM
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Rusiru Gambheera 3.5
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