Texas Instruments TI-92 Owners Manual - Page 260

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. 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. Tip: Use the title cell at the very top of each column to identify the information in that column. Variable type Column headers Row numbers Row and column number of highlighted cell Column title cells, used to type a title for each column When values are entered, the entry line shows the full value of the highlighted cell. Entering or Editing a Value in a Cell Tip: To enter a new value, you can start typing without pressing ¸ or ... first. However, you must use ¸ or ... to edit an existing value. You can enter any type of expression in a cell (number, variable, function, string, etc.). 1. Move the cursor to highlight the cell you want to enter or edit. 2. Press ¸ or ... to move the cursor to the entry line. 3. Type a new value or edit the existing one. 4. Press ¸ to enter the value into the highlighted cell. When you press ¸, the cursor automatically moves to highlight the next cell so that you can continue entering or editing values. However, the variable type affects the direction that the cursor moves. Note: To enter a value from the entry line, you can also use D or C. Variable Type List or data Matrix After ¸, the cursor moves: Down to the cell in the next row. Right to the cell in the next column. From the last cell in a row, the cursor automatically moves to the first cell in the next row. This lets you enter values for row1, row2, etc. Chapter 15: Data/Matrix Editor 243