Not to be confused with the
J++ or
J# programming languages. The J programming language, developed in the early 1990s by
Ken Iverson and
Roger Hui, is a synthesis of
APL (also by Iverson) and the
FP and
FL function-level languages created by
John Backus.To avoid the problems faced by the special character set of APL, J requires only the basic
ASCII character set, resorting to the use of
digraphs formed using the dot and colon characters to extend the meaning of the basic characters available.
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