# Multiple Integrals Examples

- Author:
- Colin Desmarais

- Topic:
- Calculus, Cone, Definite Integral, Solids or 3D Shapes, Sphere, Surface, Volume

## Change of variables in triple Integrals

The task is to set up the integral needed to calculate a volume between two surfaces.
Below is the image of a cone and a sphere, with the given equations

We want to find the volume between the surfaces (above the cone and below the sphere).
To do this, we change to spherical coordinates.

Below is a volume defined using spherical coordinates.
Change the maximum values of , , and to get a volume that corresponds to
the volume between the cone and the sphere above.