[snydly]

Am I correct in thinking that this is only reasonable if you're already using D? The switching cost seems too high if you're python everything.

I tried the Armadillo C++ library a while ago (http://arma.sourceforge.net/). The speed up and time spend learning the syntax didn't seem worth it.

[bionsuba]

I completely understand that for existing projects it might not make sense to switch, but as I say at the start of the article

    why you should consider D for your next numerical project.

[snydly]

I just ran your column means benchmark. It is pretty impressive... maybe my C++ is trash. Never saw that much speedup with Arma. I'll try it out :)