The course content is good and the quizzes are relevant. I really learned a lot from this course.

However the numerical quizzes requiring simulation are often badly explained, and many times, small details that are not mentioned in the course material will result in a wrong answer. In some questions, the right answer is outright wrong given the information in the question.

The course relies a lot on the discussion forum in these cases, however the teaching assistance is non-existant and the low number of active students enrolled simultaneously makes its usefulness limited for debugging.

For the sake of its contents, I really recommend this course, however the quizzes require some major rework for an entirely satisfactory learning experience.

Interesting course but the way the course is supported and course work is being assessed needs major reconsideration.

Bad maintenance of the questionnaires, that in too many cases exhibit questions to be answered with a magic number yielded by a simulation, that happens to be invalid even though the simulation runs perfectly. With no indications about integration intervals or stuff like that, basing the correctness of the answer on the resolution of an unknown number is too much of a lucky issue.

I find a real lack of maintenance effort in the several assignments and questionnaires. Moreover, assignments keep unchanged for years, what reduces uniqueness to the questions and allow the pupils to find the answers across the historic of the discussions.

Having said that, I must admit that the course is rather interesting and professor Mr. Schaub is absolutely, completely superb!!!!!

But please, please, please, if you don't want to mess up an otherwise super interesting course, review the questions and assignments.

Excellent teaching from Professor Schaub ! Course has been very well organised and touches on the important aspects of nonlinear control. Looking forward to more courses from you.

Thank you !

The whole course is really good. The instructor is awesome at teaching concepts. I got to learn a lot of new things.

Though the learning content itself is great, there is NO support from the instructors,mentors and TAs. Some quizes have wrong data given; despite all this, due to the student community the course is still doable and enjoyable.

Congratulations!!!

An excellent well structured and advanced high level course.

Themes like as General stability, Nonlinear stability, Langradge stability, Lyapunov stability, Asymptotic stability, Neighborhood are defined. Concept such as Lyapunov Stability Theory, Lyapunov functions, general elemental velocity Lyapunov function, Lyapunov attitude control properties, control theory, integral feedback, feedback gain, feedback control laws are analyzed, and compose over all the course "Control of Nonlinear Spacecraft Attitude Motion.

Thank prof. Schaub for very high quality course. By passing this course, I better understand kind of stabilities. This course provides basis technic for defining nonlinear control law base on Lyapunov function. This course also introduces some practical aspects such as: non linear integrator for dealing with dynamics uncertainty, gain tuning and how to dealing with actuator saturation.

I found this course really interesting, the level could be higher but I completely loved it. This course gave insight in the aspects of non-linear control of spacecrafts and encourage me to pursue a masters in Aerospace! Thank you.

Very great course, one only mark is the integral feedback quiz, for the integration problem, the answer required to solve the problem is a bit different from the real answer in which shall be corrected, everything else is great

Excellent course but it could have been smoother if the instructor kept himself in loop with people doing the course

Thanks Prof Schaub, that was a wonder of a course! Learned so much and still want to proceed :)

Course is amazing and well detailed with different live perspectives.

Very interesting and challenging!

Excellent

Excellent course! Enjoyed it a lot. Learnt a lot as well. Thank you.

works for me.

This was probably the most interesting of all the courses in this specialization, but it suffered from all the same issues. The course is effectively abandoned, don't expect to get any help if you get stuck or you have a question about something. It's also weirdly arranged, in week 2 you're asked to create a simulator, but the professor doesn't go over how to create a simulator until week 4. Thankfully previous students have left lots of help in the forums, but still. I'm not paying money to read old forum posts, I'm paying money to take a course, there should at least be a TA available to answer questions. Very disappointed with this whole specialization, it's without doubt the worst one I'm taken on coursera.