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@ttesmer
ttesmer / AD.hs
Last active October 29, 2024 15:35
Automatic Differentiation in 38 lines of Haskell using Operator Overloading and Dual Numbers. Inspired by conal.net/papers/beautiful-differentiation
{-# LANGUAGE TypeSynonymInstances #-}
data Dual d = D Float d deriving Show
type Float' = Float
diff :: (Dual Float' -> Dual Float') -> Float -> Float'
diff f x = y'
where D y y' = f (D x 1)
class VectorSpace v where
zero :: v
@chrispsn
chrispsn / kOS.md
Last active June 1, 2024 12:38
A summary of everything we know about kOS.