#incomplete -- also this page ugly af
Multiple Integrals, also called iterated integrals, are used to find the integral of functions of multiple variables.
| number of variables | integral to use | 
|---|---|
| 1 | single variable integration | 
| 2 | double integral | 
| 3 | triple integral | 
See multiple integral notation for notation info.
Multiple integrals are the inverse operation to partial derivatives.