Axioms of the real numbers, topology of metric spaces, numerical sequences, infinite series.

Prerequisites: Math 4B, 6A, 108A and 117, each with a minimum grade of C.

4

Units

Optional

Grading

1

Passtime

None

Level Limit

Letters and science

College
Unlocks MATH 243C MATH 201A MATH 221A MATH 243A MATH 202A
These majors only amath matcs math mthsc finms
Ruimeng Hu
4.4
5 reviews
See All
Fall 2025 . Garcia-Cerver
SH 1430
T R
15:30 PM - 16:45 PM
Fall 2025 . Yan Z X
SH 1430
T R
11:00 AM - 12:15 PM
See All
MATH 118A Hu R Fall 2024 Total: 64
MATH 118A Abdo E Fall 2024 Total: 69
5
4.4
PSTAT-213B . 2 Months Ago

I'm definitely biased because I come from a math background, but 213B Hu was amazing! Her lectures were very insightful and she does a good job at communicating the motivation/intuition behind each concept. Her exams, while difficult, were curved very generously. You definitely need a good grasp of analysis to fully appreciate her teaching though.

0 helpful 0 unhelpful
PSTAT171 . 2 Years Ago

This class is honestly no joke. The material doesn't seem impossible but then you get the exam and ur like...lol. But Hu is super nice and cares about her student plus there was a fatty curve so overall it was chill. Hard class but curve is huge and the professor and TAs know what they're talking about

0 helpful 0 unhelpful
PSTAT171 . 2 Years Ago

The course has a reputation being difficult, but Ruimeng made it doable. She provided a lot of resources, ranging from review problems to annotated slides, to help you review for the exams. Her midterm was 5 multiple choices and her final was 10 ones. The homework were graded by two randomly chosen questions. Overall, it was a enjoyable course.

0 helpful 0 unhelpful
PSTAT171 . 4 Years Ago

Professor Hu is so passionate and excited about the material that sometimes she goes too fast during lecture, if you ask her she will always slow down. Material is unbelievably hard but going to office hours helps a lot. Do the weekly homework and understand the concepts thoroughly, memorizing does not help. I would definitely take her class again

0 helpful 0 unhelpful
PSTAT171 . 4 Years Ago

HW 25%, Midterm 25%, Final 25%. Professor Hu is very nice and a great prof, really doing her best. But the course is very formula-heavy and even with many examples it's unclear how to apply them in each situation. CLAS is necessary to pass (at least online), be ready for lots and lots of word problems

0 helpful 0 unhelpful
See All
MATH 118A
39 / 50 Enrolled
Real Analysis
Gustavo Ponce 2.5
T R
11:00 AM - 12:15 PM
40.7% A
MATH 118A
70 / 70 Full
Real Analysis
Darren Long 3.5 Elie Abdo 4.9
T R
09:30 AM - 10:45 AM
40.7% A
MATH 117
31 / 60 Enrolled
Methods of Analysis
Jeffrey Stopple 3.0
M W F
09:00 AM - 09:50 AM
37.9% A
MATH 117
60 / 60 Full
Methods of Analysis
Yitang Zhang 4.0
T R
14:00 PM - 15:15 PM
37.9% A
MATH 117
53 / 60 Enrolled
Methods of Analysis
Jeffrey Stopple 3.0
M W F
11:00 AM - 11:50 AM
37.9% A
MATH 119A
68 / 70 Enrolled
Ordinary Differential Equations
Hanming Zhou 3.5
T R
14:00 PM - 15:15 PM
43.9% A
MATH CS 120FC
9 / 25 Enrolled
Algebraic Combinatorics
Jon McCammond 4.5
T R
11:00 AM - 12:15 PM
100.0% A
MATH CS 120FN
13 / 20 Enrolled
Special Topics in Mathematics: Number Systems
Karel Casteels 4.3
T R
15:30 PM - 16:45 PM
100.0% A