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A comment on AMA: Explaining my 750 line compiler+runtime designed to GPU self-host APL. Parent comment

Re:AMA: Explaining my 750 line compiler+runtime designed to ... by klettow on Sunday March 05, 2017 @08:35PM (#13800109)
http://code.jsoftware.com/wiki/Essays/Key#History
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Re:AMA: Explaining my 750 line compiler+runtime designed to ... by RodgerTheGreat on Sunday March 05, 2017 @11:22PM (#13800684)
If I follow correctly, the k6 equivalent would be:

    {x'y@=z}
"X of each of Y indexed by the group of Z." As in:

    key[+/;1 2 5;`x`z`z]
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