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MATH 135 · Dis 2B

Ordinary Differential Equations

Fall 2026Hale, R.4 units

Seats, time, final and grades

Seats

Closed.

40 of 40 enrolled.

Its lecture reads closed (80 of 80 enrolled): you attend both, so this seat is not one you can take while that holds. Its waitlist is full too, at 6 of 6.

Meets

R 1:00pm-1:50pm

This discussion only. You also attend Lec 2.

Final

Wed 9 Dec, 11:30am to 2:30pm

One exam for the whole class, Los Angeles time.

Read 34 hours ago.

Grades

3.11
predicted, all instructors · 1,152 grades

1,152 letter grades, everyone who has taught MATH 135.

Read 3 hours ago. The latest refresh is overdue. Seats and instructors may have changed since. Check the registrar before enrolling.

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Before you can enroll

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

From the registrar

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

Restrictions read 34 hours ago.

When it meets

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Meets: R 1:00pm-1:50pm

Lecture: MWF 1:00pm-1:50pm

Geology Building 4645

Grades

3.11
predicted, all instructors · 1,152 grades

Of the 15 people in the grade record for MATH 135, the 2 with the most grades: JOHNSON, CASEY LYNN at 2.96 over 244 grades and FLYNN, PATRICK at 3.55 over 137 grades.

A range
50%
P/NP
1%
D/F/W
9.5%

Full grade history for MATH 135

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 15 reviewers
  • Quizzes mentioned, no number given, said by 1 reviewer
  • Problem sets mentioned, no number given, said by 10 reviewers

Read from 68 reviews 26 days ago. dibs counts only what a review actually states, so a kind of work nobody mentioned is absent rather than zero.

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.

  • 3121F
  • 3122W
  • 3022S
  • 3322F
  • 3223W
  • 3223S
  • 3223F
  • 3424W
  • 6924S
  • 3824F
  • 3525W
  • 4325S
  • 3525F
Enrollment by term: 21F 31, 22W 31, 22S 30, 22F 33, 23W 32, 23S 32, 23F 32, 24W 34, 24S 69, 24F 38, 25W 35, 25S 43, 25F 35

Peak 69 · most recent 25F at 35

Seats over time

Nothing read since 1 Oct, 3 hours ago. Over about 1 month before that, same seat count, but the status moved and came back and the waitlist moved and came back.

40 of 40 · no seats left

All 15 readings say 40 of 40.

18 Aug 19:409 Sep 20:511 Oct 22:02 · 3 hours ago
dibs read 145 of the 902 hours its hourly record covers, 16%, and did not look in 757. dibs had no hourly record before 25 Aug, which is the other 158 of 1060 plotted.40 of 40 enrolled at the newest reading, 3 hours ago, and no seats left. Seats from 18 Aug 19:40 to 1 Oct 22:02, 40 to 40. The line is flat across the whole window: recorded enrollment counts match. Changes between reads may be missed. dibs read 145 of the 902 hours its hourly record here covers, 16%. An hour marked as read confirms a check, not continuous monitoring. That check recorded no change; changes between checks may be missed. For 757 hours dibs was keeping a record and did not reach this section. Nothing before 25 August at 09:00, where this section's record starts, has a read either way, which is 158 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 3 hours ago. It is the last thing dibs saw, not where the count is now.

Show the readings (15)
Recorded Enrolled Capacity Status Waitlist Hours read
1 Oct 22:02 40 40 closed 3 of 3 4 of 23
1 Oct 00:02 40 40 closed 3 of 3 2 of 8
30 Sep 17:02 40 40 waitlist 2 of 3 11 of 72
27 Sep 18:02 40 40 closed 3 of 3 3 of 15
27 Sep 04:12 40 40 waitlist 2 of 3 3 of 16
26 Sep 13:32 40 40 waitlist 1 of 3 4 of 22
25 Sep 16:32 40 40 waitlist 0 of 3 7 of 41
24 Sep 00:52 40 40 waitlist 2 of 3 18 of 125
18 Sep 20:52 40 40 closed 3 of 3 2 of 8
18 Sep 13:52 40 40 waitlist 2 of 3 3 of 16
17 Sep 22:52 40 40 waitlist 1 of 3 5 of 30
16 Sep 17:52 40 40 waitlist 2 of 3 4 of 22
15 Sep 20:52 40 40 closed 3 of 3 3 of 12
15 Sep 09:12 40 40 waitlist 1 of 3 89 of 663, 158 no hourly record
18 Aug 19:40 40 40 closed - -
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

Nobody on dibs watches this class or has it on a plan yet. Nobody has posted yet.

Dis 2B shares one room with Lec 2 and every other discussion under it, because that is what a student means by "my class".

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