> because I don't have the background, and I wish I could. Differential equations and fft come to mind.
You should just resolve learn these things and work through a section a day.
I have a math degree but never learned these things because my department was more pure than engineering oriented (an ode course wasn't required) and wanted to learn both for my day job. Turns out they are both fairly simple, and there are tons of free books. Esp differential equations have this mysticism to them before you start, and it turns out they're actually very straight-forward. Almost depressingly so, until you get pretty deep into the analysis behind them.
So... here's my encouragement to you -- just do it!
You should just resolve learn these things and work through a section a day.
I have a math degree but never learned these things because my department was more pure than engineering oriented (an ode course wasn't required) and wanted to learn both for my day job. Turns out they are both fairly simple, and there are tons of free books. Esp differential equations have this mysticism to them before you start, and it turns out they're actually very straight-forward. Almost depressingly so, until you get pretty deep into the analysis behind them.
So... here's my encouragement to you -- just do it!