https://murray.cds.caltech.edu/index.php?action=history&feed=atom&title=Margin_command_help_page 2026-09-21T14:19:08Z Revision history for this page on the wiki MediaWiki 1.44.2 https://murray.cds.caltech.edu/index.php?title=Margin_command_help_page&diff=6965&oldid=prev 2007-11-27T21:19:45Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 21:19, 27 November 2007</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l5">Line 5:</td> <td colspan="2" class="diff-lineno">Line 5:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The example plot and the &quot;help margin&quot; command give the correct descriptions of Wp and Wg.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The example plot and the &quot;help margin&quot; command give the correct descriptions of Wp and Wg.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>--[[User:Braman|Braman]] 13:19, 27 November 2007 (PST)</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>--[[User:Braman|<ins style="font-weight: bold; text-decoration: none;">Julia </ins>Braman]] 13:19, 27 November 2007 (PST)</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category: CDS 101/110 FAQ - Lecture 9-3]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category: CDS 101/110 FAQ - Lecture 9-3]]</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category: CDS 101/110 FAQ - Homework 8, Fall 2007]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category: CDS 101/110 FAQ - Homework 8, Fall 2007]]</div></td></tr> <!-- diff cache key acs_math_mw_144-murraycds_:diff:1.41:old-6964:rev-6965:php=table --> </table>

Braman https://murray.cds.caltech.edu/index.php?title=Margin_command_help_page&diff=6964&oldid=prev 2007-11-27T21:19:34Z

<p></p> <p><b>New page</b></p><div>In the Matlab help editor, the textual description of the margin command is incorrect. It should read: <br /> <br /> &quot;[Gm,Pm,Wg,Wp] = margin(sys) computes the gain margin Gm, the phase margin Pm, and the corresponding crossover frequencies Wg and Wp, given the SISO open-loop model sys. Wp is the frequency where the gain is 0dB, and Wg is the frequency where the phase is -180°. This function handles both continuous- and discrete-time cases. When faced with several crossover frequencies, margin returns the smallest gain and phase margins.&quot;<br /> <br /> The example plot and the &quot;help margin&quot; command give the correct descriptions of Wp and Wg.<br /> <br /> --[[User:Braman|Braman]] 13:19, 27 November 2007 (PST)<br /> <br /> [[Category: CDS 101/110 FAQ - Lecture 9-3]]<br /> [[Category: CDS 101/110 FAQ - Homework 8, Fall 2007]]</div>

Braman