I. Menu Keys - Keys that offer choices

H. VARS

You cannot type in the variable and function names because the TI-83 and the TI-84 do not have the capability of typing a lower case letter or a subscript. However, there are many times when you need the variable or function name entered in a program, the home screen, or with a function such as nDeriv. To have the name appear where needed, you access the menus. When you find the variable name you need and press ENTER, the name is pasted into most recent screen. There are many sub-menus.

Example: Use the menu to graph a derivative.

Enter the function.
Enter the derivative
function using 8.
Now enter Y1 by
first pressing .
Now move the cursor to
the right to access Y-VARS.

Next, open the 1:Function menu.

Press the number 1 and Y1
will appear in the graph window.
Complete the expression.
Graph.

 

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H. VARS
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