Differences

This shows you the differences between two versions of the page.

--- start [2019/11/09 17:47] – Fixed T-shirt link. opfer
+++ start [2026/09/17 12:17] (current) – external edit 127.0.0.1
@@ Line 6: / Line 6: @@
    overflow: hidden; /* to make the div fit float imgs*/
 }
+.hidden_image {}
+.hidden_br {}
 .light { padding:30px 15px 30px 15px; overflow: hidden;}
 .col-container {
@@ Line 19: / Line 21: @@
   text-align: center;
   vertical-align: top;
+}
+.middleCol {
+  display: table-cell;
+  padding: 30px 30px 50px 30px;
+  background-color: rgb(241, 241, 241);
+  text-align: center;
+  vertical-align: top;
+}
+.fixed_width_button {
+  width: 150px;
+}
+@media (max-width: 1200px) { /*rearrange cells on mobile devices*/
+  .middleCol { display: block; width: auto;
+    padding: 0px 10px 0px 10px;
+  }
+  .hidden_image { height: 50px; width: 50px;}
+  .hidden_br { display: none;}
 }
 @media (max-width: 768px) { /*rearrange cells on mobile devices*/
-  .col { display: block; width: auto; }
+  .col { display: block; width: auto;
+    padding: 0px 10px 0px 10px;
+  }
+  .middleCol { display: block; width: auto;
+    padding: 0px 10px 0px 10px;
+  }
+  .hidden_image { display: none;}
+  .hidden_br { display: none;}
 }
 a { color: rgb(167, 67, 26); }
-.button { font-size: 20px; color: rgb(167, 67, 26); }
+.button { font-size: 16px; color: rgb(167, 67, 26); }
       </style>
    </head>
@@ Line 31: / Line 57: @@
       <img heigth="150" width="150" alt="Logo" src="/theme_files/images/pmlogobig.png"  style="float:left; margin:20px;"/>
       <img src="/theme_files/images/wikilogo.png"/>
-      <hr>
-      <p>
-      polymake is open source software for research in polyhedral geometry.
-      It deals with polytopes, polyhedra and fans as well as simplicial complexes, matroids, graphs, tropical hypersurfaces, and other objects. Supported platforms include various flavors of Linux, FreeBSD and Mac OS.
       <br>
       <a href="/doku.php/boxdoc">
          <button class="button" style="float:right">&#187; try it online!</button>
       </a>
+      <hr>
+      <p>
+      polymake is open source software for research in polyhedral geometry.
+      It deals with polytopes, polyhedra and fans as well as simplicial complexes, matroids, graphs, tropical hypersurfaces, and other objects. Supported platforms include various flavors of Linux, FreeBSD and Mac OS.
+      </p>
+      <!--
+      <p class="dark">
+      <b>Hint:</b> polymake currently undergoes a major refactoring of its codebase.
+      One reason are changes in perl version 5.38 and its successors that restrict access to various internal functions.
+      This is why polymake temporarily vanished from several Linux distributions.
+      Users can download our tarballs with a <a href="/doku.php/install/jll"><img heigth="20" width="20" alt="Download" src="/theme_files/images/download-pm.png"/>prebuilt polymake</a> (including a suitable perl).<br/>
+      <b>Update:</b> The latest polymake 4.11 restores compatibility with perl 5.38 but it is unclear if these workarounds will stay possible for future perl releases.
       </p>
+      -->
    </div>
    <div class="col-container">
-      <div class="col">
+       <div class="middleCol">
+           <a href="/doku.php/news/start">
+              <img heigth="100" width="100" alt="news" src="/theme_files/images/news.png" style="margin:20px;" class="hidden_image"/>
+           </a>
+           <br class="hidden_br">
+           <a href="/doku.php/news/start">
+              <button class="button fixed_width_button">News</button>
+            </a>
+      </div>
+      <div class="middleCol">
            <a href="/doku.php/download/start">
-              <img heigth="100" width="100" alt="Download" src="/theme_files/images/download-pm.png" style="margin:20px;"/>
+              <img heigth="100" width="100" alt="Download" src="/theme_files/images/download-pm.png" style="margin:20px;" class="hidden_image"/>
            </a>
-           <br>
+           <br class="hidden_br">
            <a href="/doku.php/download/start">
-              <button class="button">Get Polymake!</button>
+              <button class="button fixed_width_button">Get Polymake!</button>
             </a>
       </div>
-      <div class="col">
+      <div class="middleCol">
          <a href="/doku.php/user_guide/start">
-            <img heigth="100" width="100" alt="Team" src="/theme_files/images/team-2.png" style="margin:20px;"/>
+            <img heigth="100" width="100" src="/theme_files/images/db-pm.png" style="margin:20px;" class="hidden_image"/>
          </a>
-         <br>
+         <br class="hidden_br">
          <a href="/doku.php/user_guide/start">
-            <button class="button">User Guide</button>
+            <button class="button fixed_width_button">User Guide</button>
          </a>
       </div>
-      <div class="col">
+      <div class="middleCol">
+         <a href="/doku.php/workshops/start">
+            <img heigth="100" width="100" src="/theme_files/images/team-2.png" style="margin:20px;" class="hidden_image"/>
+         </a>
+         <br class="hidden_br">
+         <a href="/doku.php/workshops/start">
+            <button class="button fixed_width_button">Workshops</button>
+         </a>
+      </div>
+      <div class="middleCol">
          <a href="/doku.php/documentation">
-            <img heigth="100" width="100" alt="Documentation" src="/theme_files/images/research-pm.png"  style="margin:20px;"/>
+            <img heigth="100" width="100" alt="Documentation" src="/theme_files/images/research-pm.png"  style="margin:20px;" class="hidden_image"/>
          </a>
-         <br>
+         <br class="hidden_br">
          <a href="/doku.php/documentation">
-            <button class="button">Documentation</button>
+            <button class="button fixed_width_button">Documentation</button>
          </a>
       </div>
@@ Line 110: / Line 163: @@
                <a href="/doku.php/user_guide/extend/extensions">Write your own extension!</a><br>
 </div>
-      <div class="col">  <h3>The polymake Database</h3>
+      <div class="col">  <h3>polyhedral data</h3>
-               <p>polyDB is a database for objects in discrete geometry and related areas that can be accessed from within polymake.</p>
+               <p>polymake comes with its own dataformat and database interface to the polyDB. Additionally there exist a wide variety of other datasets that can be treated by polymake, but do not fit into the polyDB directly</p>
+               <br>
+               <a href="/doku.php/user_guide/howto/polydb_tutorial">polyDB wiki page</a>
                <br>
-               <a href="/doku.php/polydb">polyDB wiki page</a>
+               <a href="/doku.php/polydb">polyhedral data overview</a>
 </div>
 </div>
-   <div class="light" style="background: url(https://polymake.org:8443/lib/exe/fetch.php/wiki/bsyourangle.png) right top no-repeat;">
+   <div class="light" style="background: url(https://polymake.org/lib/exe/fetch.php/wiki/bsyourangle.png) right top no-repeat;">
    <center>
                 <h3>Research with polymake</h3>
@@ Line 133: / Line 188: @@
 <br>
       <h4>Citation</h4>
-      If you are using polymake we would like to ask you to cite at least one of the following papers [<a href="http://www.math.tu-berlin.de/~joswig/polymake.bib">BibTeX entries</a>]:
+      If you are using polymake we would like to ask you to cite at least one of the following papers [<a href="http://page.math.tu-berlin.de/~joswig/polymake.bib">BibTeX entries</a>]:
       <ul>