Question : compute cos in haskell
Answered by : frightened-falcon-ey6vc6wmaq3w
fac :: Int -> Int
fac n = if (n == 0) then 1 else n * fac (n-1)
cos :: Double -> Double
cos x = sum [cos| k <- [0..], let cos = (-1) * (x^(2*k) / fromIntegral (fac (2*k))) , abs (cos) > 0.001]Source : https://stackoverflow.com/questions/54409219/implement-the-law-of-cosine-in-haskell | Last Update : Tue, 18 Jan 22