If you really meant matrix multiply: 6!:2 '(?256$0)+/ . *?256 312$0' 0.0180562
But, of course, this whole exercise is wrong-headed. The strength of J is not in timing comparisons of trivially simple arithmetic, it's in the power and expressiveness of the notation. > I told my friend about how nice J was. Am I wrong? > > > > He said, how fast can you multiply a 1000x1000 matrix times > > a 1x1000 vector to get a 1x1000 resultant vector. > ... -- Devon McCormick, CFA ^me^ at acm. org is my preferred e-mail ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
