Enter your up-to-80 sample data. Use either an integer, or decimal but not fractions, such as 2/3. Then click the Calculate button. Blank boxes are not included in the calculations but zeros are.
In entering your data to move from cell to cell in the data-matrix use the Tab key not arrow or enter keys.
To edit your data, including add/change/delete, you do not have to click on the "clear" button, and re-enter your data all over again. You may simply add a number to any blank cell, change a number to another in the same cell, or delete a number from a cell. After editing, then click the "calculate" button.
Kindly email your comments to:
Professor Hossein Arsham