Among other things, Dyalog now employs Roger Hui, one of principal creators of J, so Dyalog APL features are using full knowledge of J. Arthur Whitney's, the au

Among other things, Dyalog now employs Roger Hui, one of principal creators of J, so Dyalog APL features are using full knowledge of J. Arthur Whitney's, the author of K, wrote the first implementation of J. So it's a small world...