# Instructor Guide for Week 13

This week wraps up the discussion of Fourier transform and then introduces sampling and aliasing as a major application of these techniques. Emphasis is on intuitive understanding of aliasing and its relationship to the periodicity of the DTFT. The Nyquist-Shannon sampling theorem is stated and related to this intuition, but its proof is not emphasized.

### Problem session

- Revised problem 9.4.
- Go over quiz 4 and solution.