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MATH 273A · Lec 1

Optimization and Calculus of Variations: Basic Optimization Theory

Fall 2026Chen, Y.4 units

dibs reads this section's seats hourly, like everything else, but it does not send alerts for graduate courses yet.

Seats, time, final and grades

Seats

Open, 9 seats left.

21 of 30 enrolled.

Meets

MW 12:30pm-1:45pm

Every meeting the registrar lists for this section.

Final

Fri 11 Dec, 3:00pm to 6:00pm

One exam for the whole class, Los Angeles time.

Read 2 days ago.

Grades

3.78
predicted, all instructors · 96 grades

96 letter grades, everyone who has taught MATH 273A.

Read 14 minutes ago. This is a recent reading, not a live seat count.

Enroll on the registrar (opens in a new tab)

Put this class on a board

A board is one quarter you are drafting, so it needs an account to live in. Signing in brings you straight back to this page, with this class still in front of you.

Before you can enroll

Registrar's Restrictions cell, read 2 days ago: "Graduate Students".

From the registrar

Information on the Mathematics Diagnostic Test and Advanced Placement (AP) credit is available at https://uclamathugrad.zendesk.com/ .

Restrictions read 2 days ago. dibs re-reads these slowly because they rarely change, and it does not sweep graduate courses at all, so this one has no faster cadence to move to. Check the registrar.

When it meets

Mon
Tue
Wed
Thu
Fri
6am
7am
8am
9am
10am
11am
12pm
1pm
2pm
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9pm
10pm

Meets: MW 12:30pm-1:45pm

Mathematical Sciences 5225

Grades

3.78
predicted, all instructors · 96 grades

2 people have taught MATH 273A in the grade record: MONTUFAR CUARTAS, GUIDO FRANCISCO at 3.82 over 81 grades and RYU, ERNEST KANG at 3.88 over 15 grades.

A range
92%
P/NP
0%
D/F/W
0.0%

Full grade history for MATH 273A

What students say

dibs measures outcomes: grades, seats, how fast it fills. For what the class is actually like to sit in, BruinWalk has the reviews.

dibs has not read this course’s reviews, so it cannot say what kind of work it sets. That is dibs not having looked. It is not a course without papers or exams, and the reviews linked below are the answer until dibs catches up.

Reviews for MATH 273A Search the reviews for Y. Chen

Will it still be here

Not a question any more: see the notice at the top of this page.

Final enrollment per term from four years of grade data. Summer excluded: different population, different pass structure.

  • 1521F
  • 2622F
  • 2123F
  • 2424F
  • 1625F
Enrollment by term: 21F 15, 22F 26, 23F 21, 24F 24, 25F 16

Peak 26 · most recent 25F at 16

Seats over time

Filled by 6 over about 2 months

21 of 30 · 9 left
17 Aug 15:079 Sep 06:341 Oct 22:02
dibs read 168 of the 693 hours its hourly record covers, 24%, and did not look in 525. dibs had no hourly record before 3 Sep, which is the other 395 of 1088 plotted.21 of 30 enrolled at the newest reading, 14 minutes ago, with 9 left. Seats from 17 Aug 15:07 to 1 Oct 22:02, 15 to 21. dibs read 168 of the 693 hours its hourly record here covers, 24%. An hour marked as read confirms a check, not continuous monitoring. That check recorded no change; changes between checks may be missed. For 525 hours dibs was keeping a record and did not reach this section. Nothing before 3 September at 02:00, where this section's record starts, has a read either way, which is 395 hours of this window. Where the drawing is faint or broken, that never means the readings are doubtful. It means the stretch between them is unaccounted for.

A dot is a reading where something moved: the seat count, the status, or the waitlist. Flat between dots joins recorded counts; changes between reads may be missed. The line starts when dibs first saw this section rather than reaching back before it existed. The last one is the last time dibs read this section, moved or not: 14 minutes ago.

Show the readings (36)
Recorded Enrolled Capacity Status Waitlist Hours read
1 Oct 22:02 21 30 open - 1 of 1
1 Oct 22:02 21 30 open - 11 of 37
30 Sep 10:02 22 30 open - 5 of 16
29 Sep 19:02 19 30 open - 2 of 5
29 Sep 15:32 17 30 open - 2 of 4
29 Sep 12:02 19 30 open - 6 of 19
28 Sep 18:32 17 30 open - 2 of 4
28 Sep 15:02 18 30 open - 26 of 90
24 Sep 22:52 17 30 open - 2 of 4
24 Sep 19:22 18 30 open - 5 of 15
24 Sep 05:22 19 30 open - 5 of 16
23 Sep 14:42 18 30 open - 11 of 36
22 Sep 03:42 17 30 open - 15 of 52
20 Sep 00:52 18 30 open - 19 of 63
17 Sep 10:02 17 30 open - 5 of 16
16 Sep 19:02 18 30 open - 9 of 32
15 Sep 12:42 17 30 open - 17 of 57
13 Sep 04:02 16 30 open - 15 of 57
10 Sep 20:40 15 30 open - 5 of 30
9 Sep 15:40 14 30 open - 5 of 30
8 Sep 10:40 12 30 open - 20 of 132, 3 no hourly record
2 Sep 23:40 13 30 open - no hourly record
2 Sep 17:40 14 30 open - no hourly record
2 Sep 16:40 13 30 open - no hourly record
31 Aug 02:40 14 30 open - no hourly record
30 Aug 22:40 13 30 open - no hourly record
30 Aug 21:40 14 30 open - no hourly record
30 Aug 01:40 13 30 open - no hourly record
28 Aug 00:40 14 30 open - no hourly record
27 Aug 23:40 15 30 open - no hourly record
27 Aug 19:40 14 30 open - no hourly record
27 Aug 18:40 15 30 open - no hourly record
27 Aug 15:40 14 30 open - no hourly record
22 Aug 01:40 15 30 open - no hourly record
19 Aug 13:40 16 30 open - no hourly record
17 Aug 15:07 15 30 open - -
How readings and alerts work

A reading and an hourly record are different things, and most charts here hold more of the second missing than present. dibs has taken readings of a section since long before it began keeping an hour-by-hour log of when it looked, so the empty stretches are dibs saying it was not keeping that log yet, not that it looked and found nothing. That is the age of the record and not a fault.

Seat counts show the last successful read, not live availability. Refreshes can be delayed by request limits or upstream interruptions. Watched sections receive priority, but an hourly update for every section is not guaranteed.

The registrar can change a seat count between our checks. Alerts depend on dibs detecting an opening and completing delivery; a quiet watch does not prove that no seat opened. Check the registrar before enrolling.

Class chat

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