Seems you're running Kdb+ (also known as "Q" or "K4"). You need K in the older K... | Hacker News

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Ohp4boo4 on July 8, 2016 | parent | context | favorite | on: Native reactive spreadsheet in 17 LOC

Seems you're running Kdb+ (also known as "Q" or "K4"). You need K in the older K2 or K3 version to run the above. Kx stopped selling K2/K3 so they are basically no longer available.

mapcars on July 8, 2016 [–]

I see, well, it's good that Red is open-source.

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