suggestion: you could change the angle of the camera, use a marker instead of a pen, use a white paper, and maybe write more clearly. The quality of production just isn't on the right level and makes it hard to watch
I'm not used to differential equations. Is Euler's formula really the only function that satisfies y'=iy ? Very compelling, though. The exponential side of it always felt disconnected to me, this helped them feel like they actually are the same thing
If you ever re-upload this video, it would be helpful to factor out “i” from the derivative (so people can more clearly see the beginning equation) and then to link the trig function to Euler’s number by saying that this pattern only forms with either of these equations and therefore they must be linked or the different forms of the same expression