Introduction to Feedback and Control Systems: Dynamic Systems Control I

Grades

3.09

Average grade awarded in MECH&AE 171A. Not a rating: this is what the grades were. i The mean of every letter grade the registrar has published for this course, pooled across every instructor who has taught it. Not a student rating: this is what the grades were. It is not shrunk toward anything, because a course average cannot be pulled toward itself. Standard error 0.018.

The registrar's own records: 1,153 grades over 17 terms, Fall 2021 to Fall 2025, summer excluded. Every instructor is pooled here. The table below splits them, and term averages across those 17 terms ran 2.45 to 3.54.

By instructor

“Predicted” is shrunk toward the course average, which is itself shrunk toward the department, so an instructor with a handful of students sits near the course mean rather than topping the list.

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

Reviews for MECH&AE 171A ↗

What comes first

The chain dibs can see is 6 courses long before MECH&AE 171A. This is a floor, not a deadline: dibs has not read a class page for MATH 3B and MECH&AE M20, so the real chain can only be longer than this, never shorter.

Counted in courses rather than quarters: dibs does not know which of them a department lets you take together.

In Falls

Ran in 5 of the last 5 Falls.

From the terms dibs holds, which start in Fall 2021 and exclude summer. A department can run a course in a quarter it never has before.

From the registrar's catalog

dibs has not read the registrar's description for this course. It reads them for general education courses only, so this says nothing about the course. Any section below links out to the registrar, where the catalog text is, and that text is also where a prerequisite the structured list does not carry would be written.

Sections in Fall 2026

You enroll in the discussion, not the lecture, so a discussion's status is the one that decides whether you get in. A lecture can read open while every discussion under it is full.

Seat counts as of 02 Sep 01:44: the oldest of these 2 readings. The registrar publishes hourly and dibs reads what it can each hour, so a row can be older than that.

• Lec 1 TR 2:00pm-3:50pm

  Closed by the department

  Iwasaki, T.

  3.10

  this instructor · 424 grades

  83 enrolled no history i A guess about whether this will still be here at your enrollment pass, from how full it is now and how fast classes like it have filled before. Seat risk is a prediction and seat status is what the registrar said: they are two things, and this page keeps them apart.

  majors only limited by major: Undergraduate School of Engineering Majors: restrictions read 48 hours ago, old enough that alerts on it are held

  1 discussion, none open. There is no waitlist either, so the only way in is somebody dropping the lecture.

  This limit is on the class, so it applies to the discussion below.

  › Every discussion, with its time and seats (1)

  • Dis 1A

    F 12:00pm-1:50pm · Royce Hall 362

    Closed by the department

    83 enrolled

Final enrollment, averaged across each term's sections: between 60 and 95 a term over 13 terms, summer excluded, most recently 78 in Fall 2025. That is the shape across years, not this term, which is above.

Seats over time in Fall 2026

How each lecture has filled since dibs first saw it.