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The (literal) first and foremost ASCII descendant of APL was MATLAB.

I feel that the article should have made this a lot more clear - as so many people code along the APL -> Matlab / R (via S) -> NumPy family tree.

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R/S is also heavily influenced by Lisp. Haven’t written it in 10 years, but AFAIR it even has proper macros where argument expressions are passed without evaluation.

Technically those aren’t macros; they’re what the Lisp world calls ‘fexprs’.

Didn't they take their array programming from Fortran? The Fortran, numpy and matlab array syntaxes are basically identical, down to broadcasting and reduction rules.

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