## Equation Editor

To graph a function, the equation must be entered into the calculator.

Press
to open the plot application.

Select the second line and start typing a new equation or
press to edit an existing
equation. To graph an existing
equation object press . To enter more than one equation, enter them as a
list (press
and type the equations, in single quotes, separated by commas).

To graph the equations press ( )
.

To exit press .

**Note:** An equation can be edited in the stack by pressing
.