Dyalog APL version 18.0, released in June 2020, introduced the Case Convert system function ⎕C. It was a replacement for the long-lived (since version 15.0, from June 2016) I-beam 819⌶, which was then deprecated. (By the way, did you know that the digits 819 were chosen to be reminiscent of the letters BIg as in […]
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