Enabling, Disabling, And Editing Equations; Switching Betweenv; Error Screen; Creen Mode - Orbit Research Orion TI-84 Plus User Manual

Orion TI-84 Plus Talking Graphing Calculator User Guide
By pressing the Up and Down arrow keys on the TI-84 Plus You can navigate
through various "Y=" equations. If the equation string is blank, only the equation
number (Y1 to Y0) is announced.
Navigation through an equation is made possible by using the Left and Right
arrow keys to review the elements of an equation.

7.3.1 Enabling, Disabling, and Editing Equations

To enable or disable an equation follow the steps below:
1. Select the equation, and then press the TI-84 Right arrow navigation key
until the Orion says "cursor moved from equation to equals" followed by
the announcement of the status (either "enabled" or "disabled").
2. Press the Enter key to toggle the setting.
You can edit an equation in the equation section of the "Y#" editor, the same as
you would on the Home screen.
To change the Graph Line style in the "Y=" menu, navigate to the equation you
wish to change. Use the TI-84 Plus navigation keys to move left until you hear
"cursor moved to graph style," followed by the current setting, e.g., "line." To
rotate through the possible line choices, press Enter until you reach the style you
prefer.
7.4 Horizontal Split Screen Mode
The Horizontal Split Screen Mode display screen is divided horizontally into two
parts. Two screens appear one above the other. One of them is always a graph
screen. Only one screen is active at a time. Navigation and editing operations
remain the same. Speech announcement is the same as that mentioned above
for the Home screen and/or Graph screen.
7.5 Switching Between Various Screens and Menus
Note: Whenever there is a change in the active screen, the change is indicated
by an announcement.

7.6 Error Screen

An Error screen appears whenever there is an error. The Error screen contains
information about the error type, which is indicated to you as well as two options:
Quit and Go To. These options are announced as you navigate through the
menu.
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