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MATH 206A · Lec 1

Combinatorial Theory

Fall 2026Zhang, W.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, 16 seats left.

14 of 30 enrolled.

Meets

MWF 2:00pm-2:50pm

Every meeting the registrar lists for this section.

Final

None on the page dibs read

No exam time on the page dibs read. That is not the registrar saying there is no final.

Grades

3.75
predicted, all instructors · 25 grades

25 letter grades, everyone who has taught MATH 206A.

Read 47 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 36 hours 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 36 hours ago.

When it meets

Mon
Tue
Wed
Thu
Fri
6am
7am
8am
9am
10am
11am
12pm
1pm
2pm
3pm
4pm
5pm
6pm
7pm
8pm
9pm
10pm

Meets: MWF 2:00pm-2:50pm

Mathematical Sciences 5127

Grades

3.75
predicted, all instructors · 25 grades

2 people have taught MATH 206A in the grade record: GALASHIN, PAVEL at 3.85 over 13 grades and PAK, IGOR at 3.85 over 12 grades.

A range
100%
P/NP
0%
D/F/W
0.0%

Full grade history for MATH 206A

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.

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.

  • 1522F
  • 1223F
Enrollment by term: 22F 15, 23F 12

Peak 15 · most recent 23F at 12

Seats over time

Filled by 12 over about 1 month

14 of 30 · 16 left
18 Aug 19:409 Sep 19:061 Oct 18:32
dibs read 168 of the 691 hours its hourly record covers, 24%, and did not look in 523. dibs had no hourly record before 3 Sep, which is the other 365 of 1056 plotted.14 of 30 enrolled at the newest reading, 47 minutes ago, with 16 left. Seats from 18 Aug 19:40 to 1 Oct 18:32, 2 to 14. dibs read 168 of the 691 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 523 hours dibs was keeping a record and did not reach this section. Nothing before 3 September at 00:00, where this section's record starts, has a read either way, which is 365 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: 47 minutes ago.

Show the readings (16)
Recorded Enrolled Capacity Status Waitlist Hours read
1 Oct 18:32 14 30 open - 8 of 26
30 Sep 17:02 14 30 open - 7 of 23
29 Sep 19:02 13 30 open - 2 of 5
29 Sep 15:32 12 30 open - 2 of 4
29 Sep 12:02 13 30 open - 28 of 96
25 Sep 13:02 12 30 open - 2 of 5
25 Sep 09:32 10 30 open - 5 of 15
24 Sep 19:22 9 30 open - 2 of 5
24 Sep 15:52 8 30 open - 2 of 4
24 Sep 12:22 7 30 open - 119 of 587, 70 no hourly record
31 Aug 02:40 8 30 open - no hourly record
29 Aug 01:40 7 30 open - no hourly record
28 Aug 00:40 6 30 open - no hourly record
27 Aug 11:28 5 30 open - no hourly record
19 Aug 20:40 3 30 open - no hourly record
18 Aug 19:40 2 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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