<html><head></head><body>Note on Win10/chrome if you click on a slider you can coarse and fine tune with the page up/down keys and cursor (arrow) keys respectively. This is probably true on other platforms/browsers as well. <br>
<br>
Don, can you dynamically show the transfer function polynomials (or just coefficients)?<br>
<br>
-Dave<br><br><div class="gmail_quote">On September 19, 2018 9:09:24 AM PDT, Harald <sdiy@haraldswerk.de> wrote:<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<pre class="k9mail">Found it. My fault. It needs an extra click within the graphic to show <br>the results. Only moving the sliders is not sufficient.<br><br>Am 19.09.18 um 17:12 schrieb Harald:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"> Thanks Don. Interesting article. Unfortunately, for me the graphic demo <br> is mot working. No graphs to be seen, numbers are moving when the the <br> sliders are moved. Using Firefox 60.2 on Linux Leap 15.0. Any suggestions?<br> <br> Am 18.09.18 um 19:44 schrieb Donald Tillman:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #ad7fa8; padding-left: 1ex;"> Hey folks,<br><br> Since we've been talking about filters lately...<br><br> There are several classes of active filters (state variable, gyrator, <br> etc.), but one that's especially interesting is where you start with a <br> passive RC filter, with poles on the real axis, and apply feedback, <br> liberating the poles into the wonderment of the complex plane.<br><br> Here's a Javascript simulation I wrote of exactly that:<br><br> Root Locus Demo of Real Poles with Feedback<br> <a href="http://till.com/articles/poledance">http://till.com/articles/poledance</a><br><br> Have fun with it. Tell me what you think. Ask questions. Explore.<br><br> -- Don<br> -- <br> Donald Tillman, Palo Alto, California<br> <a href="http://www.till.com">http://www.till.com</a><br><br><br><hr><br> Synth-diy mailing list<br> Synth-diy@synth-diy.org<br> <a href="http://synth-diy.org/mailman/listinfo/synth-diy">http://synth-diy.org/mailman/listinfo/synth-diy</a></blockquote><br><hr><br> Synth-diy mailing list<br> Synth-diy@synth-diy.org<br> <a href="http://synth-diy.org/mailman/listinfo/synth-diy">http://synth-diy.org/mailman/listinfo/synth-diy</a><br> <br></blockquote><hr><br>Synth-diy mailing list<br>Synth-diy@synth-diy.org<br><a href="http://synth-diy.org/mailman/listinfo/synth-diy">http://synth-diy.org/mailman/listinfo/synth-diy</a><br><br></pre></blockquote></div></body></html>