Ruby had a numpy style library since the early 00's, I forget exactly when. But it never got the kind of momentum numpy and the Python ecosystem surrounding it did.
Lots of comments in this thread from people who's Ruby experience is only from the post Rails era after ~2008, and don't understand that the post Rails culture wasn't really a thing when Python was first gaining momentum for scientific computing.
Lots of comments in this thread from people who's Ruby experience is only from the post Rails era after ~2008, and don't understand that the post Rails culture wasn't really a thing when Python was first gaining momentum for scientific computing.