http://www.jsoftware.com/help/dictionary/d220v.htm
says ~ commutes or crosses connections to arguments: x u~ y ↔ y u x To my mind, because binary ~ commutes or crosses, it should be called commute or cross or switch. what is passive about actively switching the arguments to a dyadic verb? of course this bridge is already under the water, and it will never change, but it fascinates me why "passive" was chosen as the name for this verb modifier. ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
