Double integrals A single definite integral can be used to find the area under a curve. with double integrals, we can start thinking about the volume under a surface! Videos Double Integral 1 Double Integral 1 Double Integrals 2 Double Integrals 2 Double Integrals 3 Double Integrals 3 Double Integrals 4 Double Integrals 4 Double Integrals 5 Double Integrals 5 Double Integrals 6 Double Integrals 6