memoize `f`. wraps f so that f will only be called once for every unique input.
The term "memoization" was coined by Donald Michie in 1968 and is derived from the Latin word "memorandum" ("to be remembered"), usually truncated as "memo" in American English, and thus carries the meaning of "turning a function into something to be remembered". https://en.wikipedia.org/wiki/Memoization
wraps f so that f will only be called once for every unique input.
The term "memoization" was coined by Donald Michie in 1968 and
is derived from the Latin word "memorandum" ("to be remembered"),
usually truncated as "memo" in American English, and thus carries
the meaning of "turning a function into something to be remembered".
https://en.wikipedia.org/wiki/Memoization
example: