12.1 Double Integrals over Rectangles
12.2 Interated Integrals
12.3 Double Integrals over General Regions
12.4 Double Integrals in Polar Coordinates
12.5 Applications of Double Integrals
12.6 Surface Area
12.7 Triple Integrals
12.8 Triple Integrals in Cylindrical and Spherical Coordinates
12.9 Change of Variables in Multiple Integrals