>>12182431EE grad, can confirm. The difficulty of engineering doesn't come from math or even a lot of the topics, but rather the work load and getting a grasp of how to approach the vast amount of applications, and some instances of very specific theory. The highest levels of pure math I had was differentials, complex analysis, and some theory on transfoms (fourier, laplace, z). Differentials gets trivialized, and even superseded, by laplace, and complex analysis boils down to knowing a handful of properties, Cauchy's theorems, and Euler's formula. Most of the mathmatical work ends up being algebraic manipulation to get certain forms for table use or linear algebra approaches.
There are some minor exceptions, like telecoms, which is pure fourier analysis, or emag where partial differentials show up. Or in my case, an analogs professor that had a career in semiconductors placing heavy emphasis on deriving model equations, sensitivity functions, etc.
