14. Definite Integrals of Functions of Two Variables

In this video we introduce the definite integral of functions of two variables. We start by approximating the volume of snow in a pile of snow using boxes. We see how to improve our estimate by increasing the number of boxes. Next, we form a general Riemann sum for functions of two variables before taking limits to define the definite integral. This video is to be watched before a lecture on the subject so you have a good idea of what a definite integral of a function of two variables is before seeing more examples.