How much calculus is used in electrical engineering?

I have a few EE courses that I have to take in the future, including microprocessor design, signals and systems, and technical communications.

I already took circuit classes (DC analysis, AC analysis, and some transistor classes) that had no math pre-requesite, and was doable with only algebra, or inverse trigonometry in the worst case scenario.

So I'm wondering what kind of math is really needed for electrical engineering classes... the reason being is that I'm in calculus 2, and we're doing sequences/series with all the different tests (limit comparison test, root test, ratio test, comparison test, etc), and I basically just want to know if I'm ever going to use this knowledge outside of calc class.

Re: How much calculus is used in electrical engineering?

That depends upon exactly what you mean by "use". The details of convergent sequences and series, you probably won't use **directly**. However, electronics engineers use a lot of differential equations, and you need sequences and series to develop methods of solving and determining the properties of differential equations.