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diff --git a/lib/Numeric/LinearAlgebra/Tests/Instances.hs b/lib/Numeric/LinearAlgebra/Tests/Instances.hs
deleted file mode 100644
index 6dd9cfe..0000000
--- a/lib/Numeric/LinearAlgebra/Tests/Instances.hs
+++ /dev/null
@@ -1,249 +0,0 @@
-{-# LANGUAGE FlexibleContexts, UndecidableInstances, CPP, FlexibleInstances #-}
-{-# OPTIONS_GHC -fno-warn-unused-imports #-}
------------------------------------------------------------------------------
-{- |
-Module      :  Numeric.LinearAlgebra.Tests.Instances
-Copyright   :  (c) Alberto Ruiz 2008
-License     :  GPL-style
-
-Maintainer  :  Alberto Ruiz (aruiz at um dot es)
-Stability   :  provisional
-Portability :  portable
-
-Arbitrary instances for vectors, matrices.
-
--}
-
-module Numeric.LinearAlgebra.Tests.Instances(
-    Sq(..),     rSq,cSq,
-    Rot(..),    rRot,cRot,
-    Her(..),    rHer,cHer,
-    WC(..),     rWC,cWC,
-    SqWC(..),   rSqWC, cSqWC,
-    PosDef(..), rPosDef, cPosDef,
-    Consistent(..), rConsist, cConsist,
-    RM,CM, rM,cM,
-    FM,ZM, fM,zM
-) where
-
-import System.Random
-
-import Numeric.LinearAlgebra
-import Control.Monad(replicateM)
-#include "quickCheckCompat.h"
-
-#if MIN_VERSION_QuickCheck(2,0,0)
-shrinkListElementwise :: (Arbitrary a) => [a] -> [[a]]
-shrinkListElementwise []     = []
-shrinkListElementwise (x:xs) = [ y:xs | y  <- shrink x                 ]
-                            ++ [ x:ys | ys <- shrinkListElementwise xs ]
-
-shrinkPair :: (Arbitrary a, Arbitrary b) => (a,b) -> [(a,b)]
-shrinkPair (a,b) = [ (a,x) | x <- shrink b ] ++ [ (x,b) | x <- shrink a ]
-#endif
-
-#if MIN_VERSION_QuickCheck(2,1,1)
-#else
-instance (Arbitrary a, RealFloat a) => Arbitrary (Complex a) where
-    arbitrary = do
-        re <- arbitrary
-        im <- arbitrary
-        return (re :+ im)
-
-#if MIN_VERSION_QuickCheck(2,0,0)
-    shrink (re :+ im) = 
-        [ u :+ v | (u,v) <- shrinkPair (re,im) ]
-#else
-    -- this has been moved to the 'Coarbitrary' class in QuickCheck 2
-    coarbitrary = undefined 
-#endif
-
-#endif
-
-chooseDim = sized $ \m -> choose (1,max 1 m)
-
-instance (Field a, Arbitrary a) => Arbitrary (Vector a) where 
-    arbitrary = do m <- chooseDim
-                   l <- vector m
-                   return $ fromList l
-
-#if MIN_VERSION_QuickCheck(2,0,0)
-    -- shrink any one of the components
-    shrink = map fromList . shrinkListElementwise . toList
-
-#else
-    coarbitrary = undefined
-#endif
-
-instance (Element a, Arbitrary a) => Arbitrary (Matrix a) where 
-    arbitrary = do
-        m <- chooseDim
-        n <- chooseDim
-        l <- vector (m*n)
-        return $ (m><n) l
-
-#if MIN_VERSION_QuickCheck(2,0,0)
-    -- shrink any one of the components
-    shrink a = map (rows a >< cols a)
-               . shrinkListElementwise
-               . concat . toLists 
-                     $ a
-#else
-    coarbitrary = undefined
-#endif
-
-
--- a square matrix
-newtype (Sq a) = Sq (Matrix a) deriving Show
-instance (Element a, Arbitrary a) => Arbitrary (Sq a) where
-    arbitrary = do
-        n <- chooseDim
-        l <- vector (n*n)
-        return $ Sq $ (n><n) l
-
-#if MIN_VERSION_QuickCheck(2,0,0)
-    shrink (Sq a) = [ Sq b | b <- shrink a ]
-#else
-    coarbitrary = undefined
-#endif
-
-
--- a unitary matrix
-newtype (Rot a) = Rot (Matrix a) deriving Show
-instance (Field a, Arbitrary a) => Arbitrary (Rot a) where
-    arbitrary = do
-        Sq m <- arbitrary
-        let (q,_) = qr m
-        return (Rot q)
-
-#if MIN_VERSION_QuickCheck(2,0,0)
-#else
-    coarbitrary = undefined
-#endif
-
-
--- a complex hermitian or real symmetric matrix
-newtype (Her a) = Her (Matrix a) deriving Show
-instance (Field a, Arbitrary a, Num (Vector a)) => Arbitrary (Her a) where
-    arbitrary = do
-        Sq m <- arbitrary
-        let m' = m/2
-        return $ Her (m' + ctrans m')
-
-#if MIN_VERSION_QuickCheck(2,0,0)
-#else
-    coarbitrary = undefined
-#endif
-
-class (Field a, Arbitrary a, Element (RealOf a), Random (RealOf a)) => ArbitraryField a
-instance ArbitraryField Double
-instance ArbitraryField (Complex Double)
-
-
--- a well-conditioned general matrix (the singular values are between 1 and 100)
-newtype (WC a) = WC (Matrix a) deriving Show
-instance (ArbitraryField a) => Arbitrary (WC a) where
-    arbitrary = do
-        m <- arbitrary
-        let (u,_,v) = svd m
-            r = rows m
-            c = cols m
-            n = min r c
-        sv' <- replicateM n (choose (1,100))
-        let s = diagRect 0 (fromList sv') r c
-        return $ WC (u <> real s <> trans v)
-
-#if MIN_VERSION_QuickCheck(2,0,0)
-#else
-    coarbitrary = undefined
-#endif
-
-
--- a well-conditioned square matrix (the singular values are between 1 and 100)
-newtype (SqWC a) = SqWC (Matrix a) deriving Show
-instance (ArbitraryField a) => Arbitrary (SqWC a) where
-    arbitrary = do
-        Sq m <- arbitrary
-        let (u,_,v) = svd m
-            n = rows m
-        sv' <- replicateM n (choose (1,100))
-        let s = diag (fromList sv')
-        return $ SqWC (u <> real s <> trans v)
-
-#if MIN_VERSION_QuickCheck(2,0,0)
-#else
-    coarbitrary = undefined
-#endif
-
-
--- a positive definite square matrix (the eigenvalues are between 0 and 100)
-newtype (PosDef a) = PosDef (Matrix a) deriving Show
-instance (ArbitraryField a, Num (Vector a)) 
-    => Arbitrary (PosDef a) where
-    arbitrary = do
-        Her m <- arbitrary
-        let (_,v) = eigSH m
-            n = rows m
-        l <- replicateM n (choose (0,100))
-        let s = diag (fromList l)
-            p = v <> real s <> ctrans v
-        return $ PosDef (0.5 * p + 0.5 * ctrans p)
-
-#if MIN_VERSION_QuickCheck(2,0,0)
-#else
-    coarbitrary = undefined
-#endif
-
-
--- a pair of matrices that can be multiplied
-newtype (Consistent a) = Consistent (Matrix a, Matrix a) deriving Show
-instance (Field a, Arbitrary a) => Arbitrary (Consistent a) where
-    arbitrary = do
-        n <- chooseDim
-        k <- chooseDim
-        m <- chooseDim
-        la <- vector (n*k)
-        lb <- vector (k*m)
-        return $ Consistent ((n><k) la, (k><m) lb)
-
-#if MIN_VERSION_QuickCheck(2,0,0)
-    shrink (Consistent (x,y)) = [ Consistent (u,v) | (u,v) <- shrinkPair (x,y) ]
-#else
-    coarbitrary = undefined
-#endif
-
-
-
-type RM = Matrix Double
-type CM = Matrix (Complex Double)
-type FM = Matrix Float
-type ZM = Matrix (Complex Float)
-
-
-rM m = m :: RM
-cM m = m :: CM
-fM m = m :: FM
-zM m = m :: ZM
-
-
-rHer (Her m) = m :: RM
-cHer (Her m) = m :: CM
-
-rRot (Rot m) = m :: RM
-cRot (Rot m) = m :: CM
-
-rSq  (Sq m)  = m :: RM
-cSq  (Sq m)  = m :: CM
-
-rWC (WC m) = m :: RM
-cWC (WC m) = m :: CM
-
-rSqWC (SqWC m) = m :: RM
-cSqWC (SqWC m) = m :: CM
-
-rPosDef (PosDef m) = m :: RM
-cPosDef (PosDef m) = m :: CM
-
-rConsist (Consistent (a,b)) = (a,b::RM)
-cConsist (Consistent (a,b)) = (a,b::CM)
-