[Haskell-cafe] matrix question

[Hans Aberg]

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