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APL/1130 was implemented overnight in the autumn of 1967, but it took years of effort to make that possible. In 1965, Ken Iverson's group in Yorktown was wrestling with the transition from Iverson Notation, a notation suited for blackboards and printed pages, to a machine-executable programming environment. Iverson had already developed a Selectric typeball… (More)
A key point in APL history has to be, of course, the period during which Ken Iverson distilled common notation from the studies of algorithms in a variety of fields. What became to be known as Iverson notation is the first recognizable APL-like notation. showed that the notation could describe significant systems. While there were early attempts at… (More)