<html><head></head><body><div class="ydp51b7da38yahoo-style-wrap" style="font-family: verdana, helvetica, sans-serif; font-size: 16px;"><div><div>Dear Developers and Users,</div><div><br></div><div>I need some advice on using the 3ddens program. My interest is to <span>simulate STM image of a 3D system to compare with our experimental results.</span></div><div><span> </span>My questions are: <br></div><div><br></div><div>Whether it's possible for 3D system.</div><div>What determine the size of the grid points?</div><div>Do I have to edit any file in my case directory before x 3ddens -XX?</div><div><br></div><div>I want to test run using TiC, what are the general tips? Any hint is highly appreciated.</div><div><br></div><div>Thanks a lot for your time.</div><div><br></div><div>With kind regards.<br></div><div class="ydp51b7da38signature"><p style="font-family:verdana, helvetica, sans-serif;font-size:16px;"><b><font size="3" face="verdana, helvetica, sans-serif"><i>Lawal <br></i></font></b></p></div></div></div></body></html>