# Lecture 6 Blog, ECE438 Fall 2011, Prof. Boutin

Friday September 2, 2011 (Week 2) - See Course Outline.

In Lecture 6, we learned how to compute the inverse z-transform and worked out a bunch of examples. We also pointed out an important property of the ROC of the z-transform, namely that causal signals have ROCs that are either

- the whole complex plane, or
- the outside of a circle centered at the origin in the complex plane, or
- the empty set.

## Relevant Rhea Pages:

## Action items:

- Continue working on the second homework. It is due Wednesday (in class).

Note: I will not be adding any new practice problem to the course wiki this time.

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