compare ⊤ and ⊥ in APL (a programming language old enough that the pound was not decimal, but still divided into shillings and pence, at its creation): https:/

compare ⊤ and ⊥ in APL (a programming language old enough that the pound was not decimal, but still divided into shillings and pence, at its creation): https://aplwiki.com/wiki/Encode https://aplwiki.com/wiki/Encode https://aplwiki.com/wiki/Decode https://aplwiki.com/wiki/Decode