I announced the 1st midterm to be held in class on Feb 28. It will cover Chapters 1 and 2. A cheat sheet but no calculator is allowed. Thursdays class will be review. Tee will hold a review session Mon at 4. I went over the solutions to 2.21 and 2.22. We obtained formulae for the coefficients of a Fourier series representation. We determined these coefficients in the case of a periodic rectangular pulse.