> 
> 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 
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