Is a matrix is a linear operation on a vector, does it not make sense to define matrix applicaion:
mapply :: Matrix -> Vector -> Vector Then you can define say: rotate90 = mapply rotationMatrix90 v' = rotate90 v Keean. _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe