> > I just installed Ruby-Gsl (https://rubyforge.org/projects/rb-gsl/) > successfully, > so you might want to see if it does what you want and installs on your > system. Actually, I was trying to get some speedup for the clusterer gem to work ... the author of that gem tells users to install Linalg. So unfortunately rb-gsl (which I have also installed) isn't helping here. Thank you for your reply, Axel -- GMX FreeMail: 1 GB Postfach, 5 E-Mail-Adressen, 10 Free SMS. Alle Infos und kostenlose Anmeldung: http://www.gmx.net/de/go/freemail