I can't speak to j, but using q, its cousin, at work looks quite a lot more like the graph APL posted above. It's spread out over several lines, and heavily commented.
Most problems are also much simpler, and don't require any heavy one-liners.
Most problems are also much simpler, and don't require any heavy one-liners.
I don't think Arthur is as passionate about it as he is k, and he barely has anything posted on it.
It's great in some ways but usually lags behind k for people familiar with array languages.