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<p>Some of you have noticed that after you recover the filtered
y-array that almost all of the complex components are non-zero.
You will most likely find that these values will differ
significantly between arrays recovered using the inverse matrix
method vs. the direct linear algebra method. Here is the good
news -- those values can be thrown away when you actually plot the
array as you are only interested in the real components for this
exercise. Don't misunderstand -- you MUST have them for the
filter to work as they are part of the DFT processing -- but once
the filtering is done all you need are the real components.</p>
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<div class="moz-signature">-- <br>
<b>Andrew J. Pounds, Ph.D.</b><br>
<i>Professor of Chemistry and Computer Science</i><br>
<i>Director of the Computational Science Program</i><br>
<i>Mercer University, Macon, GA, 31207 (478) 301-5627 </i></div>
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