@Watson said in Things that remind you of WDTWTF members:
@Benjamin-Hall said in Things that remind you of WDTWTF members:
@cvi said in Things that remind you of WDTWTF members:
https://www.youtube.com/watch?v=NzK11DrRdks
Including the obligatory "This is legit, trust me bro."
All checks out here, speaking as someone with a physics PhD. And that's a relatively minor example of how we mathematicians.
Where we're quite happy to use Dy(x) to represent y'(x) and write (D2+5D+3) to represent an operator that turns y(x) into (D2+5D+3)y(x) = D2y(x)+5Dy(x)+3y(x) = y''(x)+5y'(x)+3y(x). 1/D is then of course just ∫.
I've seen mathematicians do it as well, with d/dx notation. Just remember it doesn't commute with things which depend on x, and there's some conditions to check (or ignore) when commuting d/dx with d/dy.