As a lowly physics major (in my first year, no less) I’ve covered multivariable calculus and linear algebra, and by jove, linearity is just so fascinating.
Whether it’s in Laplace Transforms (which have been hairy as all hell!), Transforming functions, or anything else it can be applied to – I’m really beginning to appreciate the idea of linearity. It’s so gorgeous getting to the last few lines of working and being able to draw on it to reach a final solution – watching it all unfold as you move down the page. Loving it.
Sorry if this is an inappropriate place to post this but I just wanted to share my excitement!