RosettaCodeData/Task/Pascals-triangle/Haskell/pascals-triangle-8.hs
2023-07-01 13:44:08 -04:00

5 lines
131 B
Haskell

fac = product . enumFromTo 1
binCoef n k = fac n `div` (fac k * fac (n - k))
pascal = ((fmap . binCoef) <*> enumFromTo 0) . pred