I'm looking for ideas for projects that I can do on my own, that involve either calculus or differential equations. Something so I can actually use what I've learned to produce results. Maybe, programming ideas, or ... I don't know.
Some project that shows that what I know actually matters and isn't just for solving contrived problems that only matter on the page right in front of me.
I need a reminder of that.
If anyone has any links to interesting problem sets (if such a thing exists), I'd like to see them.