LOL!
I was literally one class away from adding math as a double major. By that time, I was pretty much burnt out on math, and was just trying to get my final CS classes done so I could graduate.
I had an entire class on DiffEQ.
Yep. So did I.
We had a guy named Dr. Wolcin who was a super-bright math guy who taught DQ. Received a doctorate in math as a third year undergrad.
He knew it so well he taught it like he was teaching us how to bowl.
1. Here’s how to do the problems, don’t worry about why.
2. Now that you can do the problems and all the variations, here’s how you use it in real life.
3. Here’s the test, no surprises since you know how to bowl.
On the ‘real life’ days, no books and no writing instruments. Just watch and learn. You don’t need notes.
DOD would pay this guy on a contract basis to solve really hard math problems. Had a safe in his house and everything. He’d tell DOD it would take a couple of months to crack it.
He’d go home, sit by the pool and do the problem in a couple of afternoons, then put the finished work in his safe and deliver it in two months. Got paid stupid money for it.