jaydnul
- 558
- 15
I understand simple concepts, like \frac{dx}{dt}=v and why that is, but when I'm doing, for example, uniform charge distributions, I don't understand what the integral is actually doing. For example:
E_x=∫dEcosθ
From what I learned in calculus, the dE means with respect to. So when taking an integral you usually have the form ∫y(x)dx and the interval is [a,b], which are x values.
Why isn't the integral above in that form then? I mean at the very least, ∫dθcosθ would make more sense to me.
E_x=∫dEcosθ
From what I learned in calculus, the dE means with respect to. So when taking an integral you usually have the form ∫y(x)dx and the interval is [a,b], which are x values.
Why isn't the integral above in that form then? I mean at the very least, ∫dθcosθ would make more sense to me.