DFT easy computation and display

The program computes the DFT and displays it with the correct freq units and without the mirroring.

Description

Solves the difficulty of computing and visualizing the DFT of an array that can be caused by (a) the units of frequency, (b) the mirroring effect, (c) the complex nature.
% Inputs: -t, a time array evenly spaced 0:tstep:T
% -x, the function array
% -pl, {0,1} to display plot

% Outputs: - f a frequency array
% - G, the fourier transform, starting on the coefficiente % G1 and not in G0! (the value of wave number 0
% component is taken out, later it is explained why)

• MATLAB release: MATLAB 7.7 (R2008b)

[Frederic Moisy]

Oh, it is exactly the same as EZFFT,
see submission number 22163,
http://www.mathworks.com/matlabcentral/fileexchange/22163