"Sreekutty " <email@example.com> wrote in message <firstname.lastname@example.org>... > hi, I had a A=256by256 matrix I divide the matrix as 16by16 tiles if i had the index of the element in A how I find the position of the element in the tile
That would depend on HOW you tiled the matrix. Did you use some kind of inverse of the REPMAT command? How did you name the tiles? Did you make the tiles cell arrays? Show us an example.