No quiz this week; next week's quiz will cover level curves and partial differentiation.

Exams will be returned in discussion section. If you are in a Thursday section you can pick up your exam at my office on Tuesday or Wednesday afternoon. Solutions to the exam are available. Talk to Curtis or Andrew if you don't understand the solutions.

This week's problems are a mishmash of topics: parametrizing circles and ellipses in the plane; showing that a space curve lies on a particular surface; differentiating vector functions; plotting contour or level maps for simple functions; interpreting slopes from contour or level maps.