I did a blog post on basic matrix ops which may be useful to you
http://blog.keithsheppard.name/2009/06/bird-tracks-through-math-land-basic.h...
It uses a 2D list representation for matrices which you would not do
for any performance critical work.
best
keith
On Wed, Feb 3, 2010 at 1:38 AM, 조광래
hi i was trying to solve it but
All i got is type Matrix=[[Double]]
multMM :: Matrix -> Matrix -> Matrix --multiplies two matrices multMM m t = [[sum (zipWith (*) (head m)(a)) ] ]where a = [head a | a<- t]
Main> multMM [[2,1,-6],[1,-3,2]] [[1,0,-3],[0,4,20],[-2,1,1]] [[14.0]]
from this i could get only the first multiplication 14 that is by 2*1 + 1*0 + -6*-2 = 14
how can i make this go throw all rows and colums to get multiple of matrixs?
Thank you~
_______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
-- keithsheppard.name