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Within LTS Haskell 24.45 (ghc-9.10.3)
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(
!!* ) :: (Functor m, Functor r, Num a) => m (r a) -> a -> m (r a)linear Linear.Matrix Matrix-scalar product
>>> V2 (V2 1 2) (V2 3 4) !!* 5 V2 (V2 5 10) (V2 15 20)
(
!!/ ) :: (Functor m, Functor r, Fractional a) => m (r a) -> a -> m (r a)linear Linear.Matrix Matrix-scalar division
(
!!? ) :: [a] -> Int -> Maybe arelude Relude.List Safer version of !!, returns a Maybe. Get element from list using index value starting from `0`.
>>> [] !!? 0 Nothing
>>> ["a", "b", "c"] !!? 3 Nothing
>>> [1, 2, 3] !!? (-1) Nothing
>>> ["a", "b", "c"] !!? 2 Just "c"
data (a6989586621681141570 :: NonEmpty a)
!!@#@$$ (b :: TyFun Natural a)singletons-base Data.List.NonEmpty.Singletons No documentation available.
type family (a6989586621681141570 :: NonEmpty a)
!!@#@$$$ (a6989586621681141571 :: Natural) :: asingletons-base Data.List.NonEmpty.Singletons No documentation available.
data (a6989586621679826970 :: [a])
!!@#@$$ (b :: TyFun Natural a)singletons-base Data.List.Singletons No documentation available.
type family (a6989586621679826970 :: [a])
!!@#@$$$ (a6989586621679826971 :: Natural) :: asingletons-base Data.List.Singletons No documentation available.
data (a6989586621679826970 :: [a])
!!@#@$$ (b :: TyFun Natural a)singletons-base Prelude.Singletons No documentation available.
type family (a6989586621679826970 :: [a])
!!@#@$$$ (a6989586621679826971 :: Natural) :: asingletons-base Prelude.Singletons No documentation available.
(
!!! ) :: Ix i => BitArray i -> i -> Boolbitwise Data.Array.BitArray Bit array indexing without bounds checking. Unsafe.