1.
When the Graph screen is entered
2.
When equations are switched using the Up or Down cursor keys
3.
If the Expression Off setting (ExprOff) is enabled in the
Format
menu, only
the equation number is announced and not the entire equation.
X-Y Coordinates Announcement Cursor
X- and Y-coordinate values of the cursor are announced as the user tracks through the
graph. The Coordinate On setting (CoordOn) needs to be enabled in
the
Format
screen. Otherwise, coordinate values are not announced or visible on the
screen. Depending on the Orion setting selected, either speech or tone output is
provided for the coordinate values.
Busy Indicator
The busy indicator is the series of short beeps that sound when graph data is being
plotted on the calculator screen.
Complete Equation Playback
The complete equation is defined as the portion of the graph that is visible on the
screen. When this feature is enabled, the equation is represented by a sequence of
tones corresponding to the coordinate values.
The complete graph is always played by default when the graph is being plotted for
the first time. Also, whenever there is a change in the graph because of changes in
various settings, equations, or as a result of panning or re-centering the graph, the
complete visible graph is played.
Playback can also be engaged through the use of dedicated Orion keys. Refer to the
section titled "SonoGraph" below for more details.
Exiting the Graph Screen
When the Graph screen is active, you can exit it in the following ways:
1.
To exit either the Graph screen or the Trace screen, press the
Y=
key to return
to the graph equation editor on Y1.
2.
To exit the Trace mode, press the
Clear
key. This will switch the active screen
to Graph mode (free-moving cursor), which is indicated by an announcement.
3.
To exit the Graph mode, press the
Clear
key. This will take you to the Home
screen, which is indicated by an announcement.
