<p class=""><span lang="EN-US" style="font-size:14.0pt;mso-bidi-font-family:
Calibri;mso-bidi-theme-font:minor-latin">Dear professors:<o:p></o:p></span></p>

<p class=""><span lang="EN-US" style="font-size:14.0pt;mso-bidi-font-family:
Calibri;mso-bidi-theme-font:minor-latin">              I am a beginner of ALPS. In my
research, I have a very difficult problem, we need to calculate the density of
each point on the lattice, but I don't know how to calculate. I would
appreciate your help if you could tell me how to calculate it.</span><span lang="EN-US" style="color: rgb(51, 51, 51); background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> </span><span lang="EN-US" style="font-size: 14pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;">Thank you
again for viewing my mail.</span><span lang="EN-US" style="font-size:14.0pt;
mso-bidi-font-family:Calibri;mso-bidi-theme-font:minor-latin">Best wishs to you.<o:p></o:p></span></p>

<p class="" align="right" style="text-align:right"><span lang="EN-US" style="font-size:14.0pt;mso-bidi-font-family:Calibri;mso-bidi-theme-font:minor-latin">                                 <span style="background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;">Thank you</span><o:p></o:p></span></p>