Texas Instruments TI-89 사용자 설명서
Data/Matrix Editor
523
Deleting a Variable
Deleting a Variable
Deleting a Variable
Deleting a Variable
Because all Data/Matrix Editor variables are saved automatically, you can accumulate
quite a few variables, which take up memory.
quite a few variables, which take up memory.
To delete a variable, use the VAR-LINK screen (
2 °). For information about
VAR-LINK, refer to Memory and Variable Management.
Entering and Viewing Cell Values
Entering and Viewing Cell Values
Entering and Viewing Cell Values
Entering and Viewing Cell Values
If you create a new variable, the Data/Matrix Editor is initially blank (for a list or data
variable) or filled with zeros (for a matrix). If you open an existing variable, the values in
that variable are displayed. You can then enter additional values or edit the existing
ones.
variable) or filled with zeros (for a matrix). If you open an existing variable, the values in
that variable are displayed. You can then enter additional values or edit the existing
ones.
The Data/Matrix Editor Screen
The Data/Matrix Editor Screen
The Data/Matrix Editor Screen
The Data/Matrix Editor Screen
A blank Data/Matrix Editor screen is shown below. When the screen is displayed initially,
the cursor highlights the cell at row 1, column 1.
the cursor highlights the cell at row 1, column 1.
Ê
Ë
Ì
Ì
Í
Î
Ê
Variable type
Ë
Column headers
Ì
Row numbers
Í
Row and column number
of highlighted cell
Î
Column title cells, used
to type a title for each
column
column