# Getting the value of a Fourier Transform, trouble with the intricate component

I'm presently attempting to do some Fourier makeovers, or at the very least attempting to recognize them. The only point I'm stressed concerning is the intricate component of the function. All I have is some standard, self assumed, recognizing concerning complex numbers.

Regarding I'm worried, an intricate number exists of an actual component and also an intricate component. In the adhering to DFT it appears it has no actual component. Is that proper?

I assume we can streamline it to the adhering to, given that the others are simply modifiers.

$e^{-i}$

But for some factor, im not obtaining the excellent value's. Probably i'm doing glitch, yet im not fairly certain.

Modify :

I simply knew this might be a little bit obscure, yet my inquiries are

- Does the function F (k, l) return an intricate number, without actual component.
- Exists an unique regulation concerning $e^{-i}$

**Edit2 : **

Okay, I'm sorry for asking these standard inquiries, this is all means past the mathematics I've found out at college xD. Yet I recognize a lot of the DFT currently. Just there is one point I do not recognize which :

- What does the $F(k,l)$ component of the function specify.

Your amount has both actual and also fictional components. Due to the fact that

$$e^{ix}= \cos(x) + i \sin(x) \; .$$

Is $f(a,b)$ in your formula an actual number? After that the change has actual and also fictional parts as a whole. (For particular selections of $f(a,b)$, you can have totally actual numbers.)

If you suggest $e^{-i}$, after that make use of the formula I gave you and also you need to have the ability to calculate it.