The @ ROW@ key will add a row full of zeros at the location of the selected cell of the spreadsheet.

The @ ROW key will delete the row corresponding to the selected cell of the spreadsheet.

The @ COL@ key will add a column full of zeros at the location of the selected cell of the spreadsheet.

The @ COL@ key will delete the column corresponding to the selected cell of the spreadsheet.

The @→STK@@ key will place the contents of the selected cell on the stack.

The @GOTO@ key, when pressed, will request that the user indicate the number of the row and column where he or she wants to position the cursor.

Pressing L once more produces the last menu, which contains only one function @@DEL@ (delete).

The function @@DEL@ will delete the contents of the selected cell and replace it with a zero.

To see these keys in action try the following exercise:

(1)Activate the matrix writer by using „². Make sure the @VEC„ and @GO→„ keys are selected.

(2)Enter the following:

1`2`3`L@GOTO@ 2@@OK@@ 1@@OK@@ @@OK@@4`5`6`7`8`9`

Page 8-4