Author: Roger Hui

A Memo Operator

Some functions are simply stated and easily understood as multiply-recursive functions. For example, the Fibonacci numbers are {1≥⍵:⍵ ⋄ (∇ ⍵-2)+∇ ⍵-1}. A drawback of multiple recursion is the abysmal performance even for...

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Welcome to Vector, the Journal of the British APL Association. The BAA promotes the APLs, terse programming languages derived
from Iverson’s mathematical notation.

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