Thanks for the further info! I'd managed to figure out that it was because of multidimensional arrays (that snippet I quoted) but I didn't immediately see a nic

Thanks for the further info! I'd managed to figure out that it was because of multidimensional arrays (that snippet I quoted) but I didn't immediately see a nice way to achieve the same thing. And now, because you posted it, I do. I'll have to give Julia a go. :)