We talked already about how to calculate the electric flux through a flat surface and through an enclosed cube for a constant electric field. But what happens if the field is not constant? Or what if the surface is no longer flat? These notes will show how we modify the electric flux equation to account for varying fields and curved surfaces.

* Patterns of fields
* Flux = integral of E dot dA
* What is dA? Why do you need it?
* Direction of dA
* Symmetry arguments
  * Dot product
  * E const