This difference is not simply a case of syntax. In order to provide a large workspace, conventional spreadsheets extend a table in X and Y to form a very large grid—ideally infinite, but normally limited to some smaller dimension. Some of these cells, selected by the user, hold data. Data is manipulated using formulas, which are placed in other cells in the same sheet and output their results back into the formula cell's display. The rest of the sheet is "sparse", currently unused.