Ronald J. Legere <[EMAIL PROTECTED]> writes on 2 Nov 1999 > Has anyone out there written up a vector/matrix > package (i.e. , support for types Num a => [a] ). > ... http://haskell.org/docon contains the program, that among other issues, can, for example, compute the things like let rows = [[1,2],[0,1]] :: [[Integer]] in ((Mt rows dZ)^2, inverseMatr_euc rows) -- product inversion --> ( (Mt [[1,4],[0,1]]), [[1,-2],[0,1]] ) ------------------ Sergey Mechveliani [EMAIL PROTECTED]