Re: Question about lists

cris cris wrote:

To be honest I'm not very familiar with haskell and stuff so don't laugh with my question... here it goes.. We can represent a matrix as a list of lists... which means that 1 2 3 4 7 6 2 5 1 could be written as follows: [[1,2,3],[4,7,6],[2,5,1]] The question is how can I reverse the matrix (each row becomes a column)

The "transpose" function in the List module does exactly that. However, a list may not be the best choice here; an array would probably be better. -- Glynn Clements