fft amplitude and frequency
I am new in this group. I am trying to apply fft on my data but it
seems there is something that I don't understand. I searched previus
posts but nothing helped me.
Can anyboby help me to apply fft on this function,
f(x) = sin(2*x) + sin(3*x) + sin(4*x) , x in [0 , b]
b = 100 , 200 , 300
I have serious problems with the frequency domain as well as the
amplitude of the transformed signal.
Thanks a lot and please excuse my english.