Re: [Haskell-cafe] matrix question

On 2 Feb 2010, at 13:15, 조광래 wrote:

define functions

type Matrix=[[Double]]

multMM :: Matrix -> Matrix -> Matrix --multiplies two matrices det :: Matrix -> Double --computes the determinant of a matrix inv :: Matrix -> Matrix --inverts a matrix

i stuck on those problems

can any one help me out?

Plug in the word "matrix" on http://haskell.org/; then there comes up matches "Prelude extensions" which has that type. There is also a Numeric Prelude. Hans