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Data/Matrix Editor
Use the Data/Matrix Editor to create a one-column list variable. Then
add a second column of information. Notice that the list variable (which
can have only one column) is automatically converted into a data
variable (which can have multiple columns).
Steps and keystrokes Display
1. Use O to display the
Data/Matrix Editor.
Create a new list variable named TEMP.
Press 3 B 3 D D TEMP ¸ ¸
2. Enter a column of numbers. Then move the
cursor up one cell (just to see that a
highlighted cell’s value is shown on the
entry line).
LIST is shown in the upper-left corner to
indicate a list variable.
You can use D instead of ¸ to enter
information in a cell.
Press 1 ¸ 2 ¸ 3 ¸ 4 ¸ 5 ¸
6 ¸ C
3. Move to column 2, and define its column
header so that it is twice the value of
column 1.
DATA is shown in the upper-left corner to
indicate that the list variable was converted
to a data variable.
@B † 2 p j C 1 ¸
4. Move to the column 2 header cell to show
its definition in the entry line.
When the cursor is on the header cell, you
do not need to press † to define it. Simply
begin typing the expression.
Press 2 C C
Πmeans the cell is in a
defined column.
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