Generic Sparse Array and Sparse Matrices in C#

I'm an electrical engineer who has spend most of my career writing software. My background includes Digital Signal Processing, Multimedia programming, Robotics, Text-To-Speech, and Storage products. Most of the code that I've written is in C, C++ and Python. I know Object Oriented Design and I'm a proponent of Design Patterns.

My hobbies include writing software for fun, amateur radio, chess, and performing magic, mostly for charities.