Learning objectives

• Establish the discrete cosine transform
• Rotate the axes to diagonalize quadratic forms

Before class

• Read Lay section 7.2
• Get started with notes on discrete cosine transform
• Consult notes to the textbook (if you wish)
• Ponder Lay problems 7.2: 3, 7, 21.
• Post to Piazza
• Write solutions to problems 6.4: 2, 10, 14; 6.5: 2; 7.1: 18, 25 to turn in at the beginning of class

In class

• Prepare for Thursday’s test
• Work through notes on cosine transform
• Work problems on quadratic forms