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    How does one use symbols rather than solid line?<br>
    Thanks,<br>
    Stephen<br>
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        <a
href="http://www-sop.inria.fr/members/Stephen.Wornom/animate_tandem_cylinders_sound_waves.html">Tandem
          cylinders pressure waves</a></li>
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        <a
href="http://www-sop.inria.fr/members/Stephen.Wornom/animate_tandem_cylinders_pressure-wave_explosion_when_vortex_shedding_starts.html">pressure
          wave explosion when vortex shedding begins (be patient,
          startup is slow)</a></li>
      <li>
        <a
href="http://www-sop.inria.fr/members/Stephen.Wornom/animate_square_cylinder_vorticity_dynamic_vs_non-dynamic.html">Square
          cylinder Re= 22400: dynamic vs non-dynamic (patience)</a></li>
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