(Maybe?) Minor mistake in Course Content

Course Q&A Math for Machine Learning Linear Algebra for Machine Learning and Data Sc...
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1

Link to the classroom item you are referring to:

Screenshot 2024-03-07 at 10.36.39 AM
Screenshot 2024-03-07 at 10.36.39 AM1915×886 91.8 KB

I hope I don’t completely embarrass myself now but doesn’t the matrix at 4:25 in the video show a row echolon form and NOT a reduced echolon form?

At least given my understanding of the criterias of a reduced echolon form:

  • It is in row echelon form.
  • The leading entry in each nonzero row is 1.
  • Each column containing a leading 1 has zeros in all its other entries.
2

I think you are correct. I’ve submitted an issue to the course staff.

3

@TMosh Any feedback so far?

4

Sadly, no.

5

Update: It’s being worked on.