Texas Instruments TI-82 User Manual - Page 108
Defining the Dependent Variable
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Defining the Dependent Variable The selected Yn functions define the dependent variables. You can have as many dependent variables as there are functions in the current graphing MODE. From the Y= Editor Enter the functions to define the dependent variables in the Y= editor. The current graphing MODE is used. In Par, you must define both components of the parametric equation. Only functions that are selected are displayed in the table (Chapter 3). From the Table Editor Once a Y= function has been entered and selected, you can change it from the table editor. 1. Move the cursor to the column of the dependent variable. 2. Press } until the cursor is on the name of the function at the top of the column. The function is displayed on the bottom line. 3. You may edit the function. Press Í to switch to the editing context and make the changes. The function in the Y= table is updated. 4. Press Í or †. The new values are calculated, and the table is updated automatically. Note: This feature also allows you to view the function that defines the dependent variable(s) without leaving the table. 7-4 Tables
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