# Name for grid system

Is there a name for a type of grid you might find in Battleship? Where coordinates don't relate to points on a grid but rather the squares themselves?

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Surely you can just make a rule to say that the bottom-left integer coordinate represents the square you want and you are done! –  BlackAdder Jul 2 '13 at 16:02
I don't really see this as a Mathematics question. But maybe you want an "array"? –  Willie Wong Jul 2 '13 at 16:03
No I am asking about the name/definition of such a coordinate system within a mathematical framework. For instance we normally deal with Cartesian coordinate systems but I am wondering if there is a name for the variant mentioned in the OP –  user2367428 Jul 2 '13 at 16:05

You could also refer to this sort of "playing field" in a game like battleship as an incidence matrix of sorts: where a cell in the ith row and jth column might be occupied, using "$1$", or not occupied, using "$0$".