Learning objectives

• Solve systems of linear equations using Gaussian elimination
• Gain familiarity with echelon and reduced echelon matrices

Before class

• Read Lay sections 1.1, 1.2
• Consult notes to the textbook (if you wish)
• Ponder Lay problems 1.1: 7, 12, 19-22, 23, 25, 33, 34; 1.2: 1, 7, 9, 11, 21, 23, 25, 33.
• Post to Piazza
• Download Mathematica onto your laptop (so we can use it in class)

In class

• Practice solving linear systems
• Introduction to Mathematica