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
Darren Long
3.5
87 reviews
ABDO E
Elie Abdo
4.9
14 reviews
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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
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MATH 118A Abdo E Fall 2024 Total: 69
MATH 118A Hu R Fall 2024 Total: 64
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101
4.2
MATH117 . 2 Months Ago

He is super super helpful in Office Hour. He's a tough grader but it is very fair. If you understand everything in class then you are guaranteed to get a good grade.

0 helpful 0 unhelpful
MATH117 . 2 Months Ago

Professor Long is very good at explaining the material by going through proofs pretty carefully. His tests are reasonable difficulty as well. However, his grading criteria is extremely opaque, and he also did not upload the final exams for us to view how we actually did.

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math6b . Abdo E 5 Months Ago

I think ill never have a better teacher again no joke. Completely accesible from outside of class, made it easy to learn and understand a hard topic.

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math6b . Abdo E 5 Months Ago

The best math professor I have ever had at UCSB. His lectures are very easy to follow and understand although the second unit was a lot more difficult than the first. Attendance was not mandatory for both section and lecture. There was only two tests: a midterm and a final, which was on week 10 instead of finals week. Weekly homework was good.

0 helpful 0 unhelpful
math118b . Abdo E 6 Months Ago

Good teaching style, go to the office hour will help learning a lot.

1 helpful 0 unhelpful
math6b . Abdo E 7 Months Ago

This class being "easy" isnt just a meaning that nobody is learning, it means that he does it well. The best professor I have had at UCSB. Breath of fresh air.

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