I'm having problems with understanding Fourier integral. I only have one example solved, but i don't have a clue what is done there.
I have to transform this function into a Fourier integral
Start with the definition of the Fourier Transform:
(your definition may vary as there is no standard about where the constants go in the FT IFT pair).
Now your function is zero outside of the inteval , so the integral can be done over this interval:
and I will leave the rest to you.