<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=Windows-1252">
<style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style>
</head>
<body dir="ltr">
<div style="font-family: Arial, Helvetica, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">
<pre style="margin:0in 0in 0.0001pt;font-size:10pt;font-family:"Courier New""><span style="font-size:11.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span>cheater cheater asked:<o:p style="color: inherit; font-family: Arial, sans-serif; font-size: 11pt; font-style: inherit; font-variant-ligatures: inherit; font-variant-caps: inherit; font-weight: inherit; background-color: ;"> </o:p></pre>
<pre style="margin:0in 0in 0.0001pt;font-size:10pt;font-family:"Courier New""><span style="font-size:11.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></pre>
<pre style="margin:0in 0in 0.0001pt;font-size:10pt;font-family:"Courier New""><span style="font-size:11.0pt;font-family:"Arial",sans-serif">“Would you mind walking me through either where to find it in a book or how to calculate it? I would appreciate that. I haven't read any books on FFT so I'd be lost. But I do understand it (mostly).”<o:p> </o:p></span></pre>
<p class="MsoNormal" style="margin:0in 0in 8pt;font-size:11pt;font-family:Calibri, sans-serif;margin-top:12.0pt;margin-right:0in;margin-bottom:0in;margin-left:0in;text-align:justify;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt">
<span style="font-family:"Arial",sans-serif;mso-fareast-font-family:"Times New Roman"">That’s a very long walk!
<span style="mso-spacerun:yes"> </span>First you need to understand (that there are) the four ”animals” in Fourier Land: FT, FS, DTFT, and DFT=FFT. Begin here:
<o:p> </o:p></span></p>
<p class="MsoNormal" style="margin:0in 0in 8pt;font-size:11pt;font-family:Calibri, sans-serif;margin-bottom:0in;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt">
<span style="font-family:"Arial",sans-serif;mso-fareast-font-family:"Times New Roman""><span style="mso-spacerun:yes">
</span><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin:0in 0in 8pt;font-size:11pt;font-family:Calibri, sans-serif;margin-bottom:0in;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt">
<span style="font-family:"Arial",sans-serif;mso-fareast-font-family:"Times New Roman""><a href="http://electronotes.netfirms.com/AN410.pdf">http://electronotes.netfirms.com/AN410.pdf</a><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin:0in 0in 8pt;font-size:11pt;font-family:Calibri, sans-serif;margin-bottom:0in;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt">
<span style="font-family:"Arial",sans-serif;mso-fareast-font-family:"Times New Roman""><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin:0in 0in 8pt;font-size:11pt;font-family:Calibri, sans-serif;margin-bottom:0in;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt">
<span style="font-family:"Arial",sans-serif;mso-fareast-font-family:"Times New Roman"">-Bernie<o:p> </o:p></span></p>
<br>
</div>
</body>
</html>