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Thanks for the explanation! I just found someone with a different approach who has similarly broken it down on Twitter: https://twitter.com/janiczek/status/1465

Thanks for the explanation! I just found someone with a different approach who has similarly broken it down on Twitter: https://twitter.com/janiczek/status/1465969017089363969 https://twitter.com/janiczek/status/1465969017089363969

Jtsummers 5y ago
https://tryapl.org https://tryapl.org That's an online APL REPL with all the symbols listed at the top, hover to get a tooltip that tells you both how to type it into the REPL and what its name is. I'd forgotten what rotate was because my APL deep-dive was 2 or 3 years ago now. It's handy for discovering the symbols and breaking down the harder-to-understand one-liners (for novices or those unfamiliar with it).