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COM SCI 181 · Lec 1

Theory of Computing

Fall 2026Jaffe, E.A.4 units

Seats, time, final and grades

Seats

Waitlist, 5 of 20 places taken.

150 of 150 enrolled, lecture and all discussions summed.

Meets

MW 6:00pm-7:50pm

Lecture only. You also attend a discussion, listed below.

Final

Thu 10 Dec, 11:30am to 2:30pm

One exam for the whole class, Los Angeles time.

Read 3 days ago.

Grades

3.18
predicted, all instructors · 2,145 grades

2,145 letter grades, everyone who has taught COM SCI 181.

Read 2 hours ago. The latest refresh is overdue. Seats and instructors may have changed since. Check the registrar before enrolling.

Join the waitlist on the registrar (opens in a new tab) Sign in to watch for an opening

Watching is the one thing here that needs an account, because an alert needs somewhere to go. Everything else on this page works signed out.

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 3 days ago: "Computer Engineering, Com Sci, Com Sci and Engineering, Electrical Engineering, Ling of Com Sci, Undeclared Engineering Majors, or Cog Sci, C&S Bio, Math of Computation Majors or Premajors or Bioinfo, or Data Engineering Minors, and Undergraduate Students Only".

Tell dibs what you have already taken and this line will say which of these you have. Your list.

From the registrar

Students who enroll in upper-division courses offered by the Samueli School without completing the requisites are subject to disenrollment after the second class meeting. If necessary, consult with an OASA counselor through MyUCLA Message Center.

Restrictions read 3 days ago. dibs re-reads these slowly because they rarely change; watch the section and it moves to every 6 hours.

Discussions

You enroll in the discussion, not the lecture, so the seat figure above is the sum across all of them and can read open while every discussion you could actually join is full.

3 discussions, none open. The way in is the lecture's waitlist, at 5 of 20.

No discussion is open. 3 discussions have a waitlist with room. A place on one is not a seat: it is a queue the department may or may not clear.
  • Dis 1A

    F 2:00pm-3:50pm

    Wang, H.

    Waitlist, 4 of 7 places taken.

  • Dis 1B

    F 2:00pm-3:50pm

    Zhao, H.

    Waitlist, 0 of 7 places taken.

  • Dis 1C

    F 2:00pm-3:50pm

    Kohli, S.

    Waitlist, 1 of 6 places taken.

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: MW 6:00pm-7:50pm

Boelter Hall 3400

Grades

3.18
predicted, all instructors · 2,145 grades

Of the 4 people in the grade record for COM SCI 181, the 2 with the most grades: MEKA, RAGHU at 3.37 over 1,036 grades and SHERSTOV, ALEXANDER at 2.73 over 603 grades.

A range
42%
P/NP
-
letter grade only
D/F/W
5.9%

Full grade history for COM SCI 181

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.

What the work looks like

  • Exams mentioned, no number given, said by 7 reviewers
  • Problem sets mentioned, no number given, said by 6 reviewers

Read from 124 reviews 16 days ago. dibs counts only what a review actually states, so a kind of work nobody mentioned is absent rather than zero.

Reviews for COM SCI 181 Search the reviews for E.A. Jaffe

Will it still be here

high risk chance of closing before your enrollment pass.

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

  • 20421F
  • 10522W
  • 14822S
  • 24922F
  • 9823W
  • 14823S
  • 21523F
  • 5924W
  • 15024S
  • 18424F
  • 8925W
  • 15725S
  • 18425F
Enrollment by term: 21F 204, 22W 105, 22S 148, 22F 249, 23W 98, 23S 148, 23F 215, 24W 59, 24S 150, 24F 184, 25W 89, 25S 157, 25F 184

Peak 249 · most recent 25F at 184

Seats over time

Nothing read since 1 Oct, 2 hours ago. Over about 2 months before that, same seat count, but the status went closed to waitlist and the waitlist went 20 of 20 to 5 of 20.

150 of 150 · no seats left in its discussions

All 33 readings say 150 of 150.

17 Aug 15:079 Sep 04:151 Oct 17:22 · 2 hours ago
dibs read 168 of the 494 hours its hourly record covers, 34%, and did not look in 326. dibs had no hourly record before 11 Sep, which is the other 589 of 1083 plotted.150 of 150 enrolled at the newest reading, 2 hours ago, and no seats left in its discussions. Seats from 17 Aug 15:07 to 1 Oct 17:22, 150 to 150. The line is flat across the whole window: recorded enrollment counts match. Changes between reads may be missed. dibs read 168 of the 494 hours its hourly record here covers, 34%. An hour marked as read confirms a check, not continuous monitoring. That check recorded no change; changes between checks may be missed. For 326 hours dibs was keeping a record and did not reach this section. Nothing before 11 September at 04:00, where this section's record starts, has a read either way, which is 589 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. Recorded enrollment counts match, so the line is flat across the whole window: it says when dibs looked rather than what changed. The last dot is the last time dibs read this section, moved or not, and that was 2 hours ago. It is the last thing dibs saw, not where the count is now.

Show the readings (33)
Recorded Enrolled Capacity Status Waitlist Hours read
1 Oct 17:22 150 150 waitlist 5 of 20 7 of 18
1 Oct 00:22 150 150 waitlist 5 of 20 2 of 5
30 Sep 20:52 150 150 waitlist 12 of 20 3 of 6
30 Sep 15:02 150 150 waitlist 8 of 20 7 of 21
29 Sep 19:22 150 150 waitlist 12 of 20 2 of 5
29 Sep 15:52 150 150 waitlist 14 of 20 2 of 3
29 Sep 13:12 150 150 waitlist 12 of 20 6 of 17
28 Sep 21:22 150 150 waitlist 14 of 20 2 of 5
28 Sep 17:52 150 150 waitlist 18 of 20 2 of 4
28 Sep 14:22 150 150 waitlist 17 of 20 2 of 4
28 Sep 11:32 150 150 waitlist 18 of 20 4 of 11
28 Sep 01:32 150 150 waitlist 17 of 20 2 of 4
27 Sep 22:02 150 150 waitlist 18 of 20 9 of 27
26 Sep 20:02 150 150 closed 20 of 20 6 of 17
26 Sep 04:12 150 150 waitlist 19 of 20 2 of 5
26 Sep 00:12 150 150 waitlist 18 of 20 3 of 8
25 Sep 17:22 150 150 waitlist 19 of 20 6 of 17
25 Sep 01:12 150 150 waitlist 18 of 20 5 of 14
24 Sep 12:22 150 150 waitlist 19 of 20 2 of 5
24 Sep 08:52 150 150 waitlist 18 of 20 3 of 8
24 Sep 01:12 150 150 waitlist 19 of 20 3 of 7
23 Sep 19:02 150 150 waitlist 18 of 20 4 of 12
23 Sep 08:52 150 150 closed 20 of 20 5 of 14
22 Sep 19:42 150 150 waitlist 19 of 20 82 of 235
13 Sep 01:32 150 150 closed 20 of 20 3 of 7
12 Sep 19:42 150 150 waitlist 19 of 20 2 of 4
12 Sep 16:12 150 150 waitlist 18 of 20 2 of 5
12 Sep 12:52 150 150 waitlist 19 of 20 2 of 3
12 Sep 10:32 150 150 waitlist 18 of 20 4 of 10
12 Sep 01:02 150 150 waitlist 19 of 20 2 of 3
11 Sep 23:02 150 150 closed 20 of 20 3 of 6
11 Sep 18:40 150 150 waitlist 19 of 20 10 of 604, 589 no hourly record
17 Aug 15:07 150 150 closed 20 of 20 -
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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