some updates

• Assignment 4 is now due on Friday, March 28^th.
• There will also be a short quiz on Friday covering sections 3.1, 3.2, 3.3 & 3.4 from your text.
• The course midterm will take place on Wednesday, April 9^th - remember this is worth 10% of your mark; and will cover questions from Unit 1, Unit 2, and Unit 3.