It is function to sum the total value of cell which you specify.
If you select the 'Insert | Function' after selecting the cell (one or several), Insert Function dialogue box comes up.
After inserting the '@sum(A0:A3)' at Insert Function dialogue box, you can modify this function by using the Cell Text Edit dialogue box. This dialogue box comes up by selecting the 'Form | Cell | Cell Text' or icon of Reporter ToolBox.
Also, you can insert this function by using the Cell Text Edit dialogue box, without Insert Function dialogue box.
Function for sum uses following format.
-Function definition : double sum(cell 1 : cell 2)
-Function parameter : Specific number of cell. (start / end location)
-Result : Value of summing each cell.
Example of written function) =@sum(A0:F5);
Function description : It displays the sum value of total cell, between A0 and F5.
Relate items)