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# How to Use Formulas to Enter Data in the TI-84 Plus

Use can use formulas to enter statistical data in the TI-84 Plus calculator. The image here illustrates how you would place the sequence 10, 20, ..., 200 in list L1. The formula used in this example is simply x. The initial and terminal values of x are naturally 10 and 200, respectively. And, as you may guess, x is incremented by 10.

To use a formula to define your data:

1. If necessary, press [STAT][1] to enter the Stat List editor.

2. Use the

keys to place the cursor on the column heading where you want your data to appear and press [ENTER].

3. Press

to access the seq command.

4. Enter your formula as a function of a single variable, press [,], and then enter the name of the variable and press [,].

The first picture shows this process; here the formula is x and the variable is x.

5. Enter the initial value of your variable, press [,], enter the terminal value of your variable, press [,], enter the increment for the variable, and then press [ ) ].

The second picture shows this process.

6. Press [ENTER] to enter your data in the calculator.

This procedure is shown in the third image.