Newbie question



>>>>> "John" == John Marshall <Marshall> writes:

    John> However, using the command fft( ) on the 2048 element array
    John> results in maxima producing an outputg40613 with the numeric
    John> part incrementing by one, each execution.

What do you mean the numeric part incrementing by one, each execution?

    John> Can anyone assist by dropping me a few lines of code to
    John> allow me to view a frequency spectrum of my data array?

Here is a short example:

x:makelist(k,k,1,1024)$  /* Ramp from 1 to 1024 */
y:fft(x)$
plot2d([discrete, x, abs(y)^2], [logy]);

This should produce a semilog plot of the frequency spectrum
(magnitude) of x.

If this doesn't work for you, let us know.

Ray