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    <p>Pat,</p>
    <p>I'm using gnuplot also.   I zoom in by right-clicking while
      drawing a rectangle, then left click to zoom in on that rectangle.<br>
    </p>
    <p>David</p>
    <p><br>
    </p>
    <div class="moz-cite-prefix">On 11/21/21 10:31 AM, Pat Caron via
      DPRGlist wrote:<br>
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cite="mid:CA+mr86fPN6HKYVsDS8YKrgWKnHz+uWJXSrvVqvagN2uMbGpkZQ@mail.gmail.com">
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            style="font-size: 11px;"> [EXTERNAL SENDER]</em></strong></p>
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        <div class="gmail_default" style="font-size:small">During a
          previous DPRG meeting, David A. presented some PID plots of
          his robot velocities.<br>
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        <div class="gmail_default" style="font-size:small">Does anyone
          know what program he was using to display the plots?</div>
        <div class="gmail_default" style="font-size:small">I have been
          using gnuplot for this purpose, but I am unable to zoom in as
          he did during the presentation.</div>
        <div class="gmail_default" style="font-size:small"><br>
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        <div class="gmail_default" style="font-size:small">Regards,</div>
        <div class="gmail_default" style="font-size:small">Pat C.<br>
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