After years in industry and research, I rediscovered the pleasure of teaching, mainly at t he high school and college level. Tutoring is a bit different, more of a challenge through the constant need of solving problems on a very short notice--but that is why I like it.Linear Algebra and Differential Equations are the bread and butter of a physicist and of a serious engineer. I learned Linear Algebra in a two-semester course. I applied it both in industry (car paints mixing) and in my resear
