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5.4.1 - Français

Scilab 5.4.1

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Aide Scilab >> Traitement du Signal > transforms > dft (deprecated)

dft (deprecated)

discrete Fourier transform This function is obsolete.

Calling Sequence

[xf]=dft(x,flag);

Arguments

x: input vector
flag: indicates dft (flag=-1) or idft (flag=1)
xf: output vector

Description

Function which computes dft of vector x.

Examples

n=8;omega = exp(-2*%pi*%i/n);
j=0:n-1;F=omega.^(j'*j);  //Fourier matrix
x=1:8;x=x(:);
F*x
fft(x,-1)
dft(x,-1)
inv(F)*x
fft(x,1)
dft(x,1)

History

Version	Description
5.4.1	dft is obsolete. The algorithm has been moved to the fft help page.

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