I just want to make sure I correctly understand unit vectors. I know they indicate units of length or magnitude, but how does that play out practically speaking? Take the following example.
And so on. In layman's terms, what is exactly going on there? It looks like a simple exponential expression, but is that correct? Probably not, because wouldn't you just write f(x)=x2 (squared)? I just don't quite get the whole concept...
What if it's f(x)=x^3? How does that play out?
Thanks in advance!