ftp.ntua.gr:/mirror/slackware/slackware64/source/l/eigen3/?C=D&O=A 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] eigen-3.4.0.tar.lz                               18-Aug-2021 23:41  1.7M  
[TXT] eigen3.SlackBuild                                04-Oct-2021 01:45  3.4K  
[TXT] slack-desc                                       01-Nov-2020 22:04  751
Apache/2.2 Server at ftp.ntua.gr Port 80