This lecture was all about Z transform and region of convergence ROC. We looked at left sides, right sides, and 2 sides, and how to find the ROC for each. Nice trick to help us remember the ROC was shown, which is: For right-sided sequence, look to the right, so the ROC is outside some circle. And for left-sided sequence, look to the left, hence the ROC is inside some circle.
For 2 sided sequence, the ROC will be inside the space of 2 circles, one larger than the other. It is also possible that the ROC can not exist for 2 sided.
Notes are given, We went over residue theorem, but it wont be on exam.
Important properties of Z transform given, but we did not go over some of them, they are in the notes.
Exam will be in 2 weeks time.