Lapsed engineer/scientist (now a patent practitioner) seeking to expand his math skills. Most of those skills lay in areas useful to optics such as sums & integrals (like the one below), complex analysis, differential equations, transforms, and data analysis.
My greatest hits page. (a work in progress)
"Wir müssen wissen, wir werden wissen." - David Hilbert
"Who's laughing now [cloud]?" - Abraham Simpson