Ino4137
/ sierpinski.hs
Last active
April 25, 2018 13:18
— forked from Xophmeister/sierpinski.hs
Sierpinski Triangle in Haskell
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| sumPairs :: [Integer] -> [Integer] | |
| sumPairs (x:y:s) = (x + y) : sumPairs (y:s) | |
| sumPairs _ = [] | |
| pascal :: Integer -> [Integer] | |
| pascal 0 = [1] | |
| pascal n = sumPairs $ 0 : pascal (n - 1) ++ [0] | |
| sierpinski :: Integer -> String | |
| sierpinski n = pascal n >>= (ascii . odd) |