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Utilizing Excel's turing capabilities to create Conway's 'Game of Life'
The Background It's been said with Lambda (and LET and a wealth of functions in 365) Excel has become 'turing-complete'. To quote the article linked below: "You can now, in principle, write any co...
INDEX was far from my first choice too, but I eventually settled for testing row and column numbers for 0 and n+1. I also tested Riny_van_Eekelen 's start and at iteration 4 it returned the same shape but displaced.
Your original pattern became static at iteration 50. An advantage of recursion is that one could terminate the calculation there whereas REDUCE bashed on for the full 100 that I had set.