Often it is convenient to have the TI89 generate a table of values for a function (or functions) using a constant increment between each x value. To do this:
First, you have to be sure that the function is defined and checked ( key on the Y= screen). The table that you generate will contain values for all checked functions. 

Press (Tbl Setup) to bring up the Table Setup screen. Here, you enter the starting xvalue for the table and the increment between values. If Independent is AUTO, Graph <> Table has the following effect:


Once the table is initialized, press (Table) to view the table. You can use the arrow keys to scroll through the table, and to change the starting value or increment. 

Sometimes it is most convenient to enter the xvalues that you want manually. The function shown at right is from Example 1 on p. 48 of the Larsen Text. You want to find y values for selected x values near x = 0. (You could also use the "" operator on the home screen to generate values of this function, also, but table form is often convenient, and the table can calculate for several functions at once.) 

On the Table Setup screen, set Independent to "2: ASK". The starting value and increment here don't matter. 

For every x value you enter, the yvalue is calculated for each definedandchecked function. Oops! Notice that the yvalue for x = 0.0001 does not match the value given in the text  the value in the table has been rounded. 

To display more digits, pull down the "F1: Tools" menu and select "9: Format". 

Use the pulldown menu to select the number of digits that you want. 

Here is a moreprecise value (using 10 digits). 