Register to reply 
FFT and ifftby eahaidar
Tags: ifft 
Share this thread: 
#1
Mar114, 04:18 PM

P: 60

Hello everyone.
Sorry if the question is silly, but in really need to know something. We know that The Fourier transform of time is frequency and the inverse of frequency is time. In Matlab can anyone tell me how to write it ? Because in the book Non linear fiber optics by Agrawal we found that they used the opposite of what I just said any ideas ??? Thank you 


#2
Mar114, 06:40 PM

Sci Advisor
Thanks
PF Gold
P: 1,908

The transforms are inverses; one goes time>frequency, the inverse goes frequency>time.
Note that there are several ways to write the transforms, varying where the 2*pi is placed. So compare the definitions being used when comparing different texts/programs. 


#3
Mar114, 07:00 PM

P: 60

Thank you for the reply
So can u give me an example ? 


#4
Mar214, 09:25 PM

Sci Advisor
Thanks
PF Gold
P: 1,908

FFT and ifft



Register to reply 
Related Discussions  
Forcing IFFT to start/end at 0 value  Differential Equations  7  
DFT Matlab  fft and ifft commands  Engineering, Comp Sci, & Technology Homework  0  
Need help to solve FFT and IFFT by mathematica  Advanced Physics Homework  0  
2D IFFT in Fortran  Programming & Computer Science  0  
Wavefunction with fft and ifft in matlab  Math & Science Software  4 