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Orion TI-84 Plus Talking Graphing Calculator User Guide
coordinate value; the frequency of the tone corresponds to the Y-
coordinate value of each point.
•
If you navigate to a coordinate value outside of the visible screen area, no
tone is generated. Instead, the coordinates are announced in speech
format regardless of the mode selected.
•
Regardless of the output mode (tone or speech), pressing the Orion
Repeat Toggle Mode key always announces coordinates in speech
format.
•
If the previous operation on the TI-84 Plus was switching equations
(switching between graphs), pressing the Repeat key results in speech
announcement of the active equation along with the coordinate values.
•
While graphs are being plotted on the TI-84 Plus screen, the calculator is
"busy" and does not accept additional inputs. This is indicated with a
series of short beeps, until plotting is completed.
7.2.7 Y-Value Corresponding to X-Value in Trace Mode
To re-position the graph cursor to a particular point on the graph when in Trace
mode, you can enter an X-value or an expression followed by the Enter key. The
X entry and edit operations are announced. When the active cursor moves to a
new X location, the corresponding X- and Y-coordinates are announced in
Speech mode while the corresponding tone is played for the coordinate in Tone
mode
7.3 "Y=" Menu
Pressing the Y= key displays the "Y=" menu. The "Y=" menu is where you add
the expressions to be graphed. After the key is pressed, the "Y1" expression is
spoken. There are 10 graphs that can be plotted on the same screen; they are
labelled "Y1" to "Y0."
Use the TI-84 Plus Up and Down navigation keys, to navigate from one
expression to the next.
To select the Plot Menu while on the "Y1", press the TI-84 Plus Up key.
Moving left and right in the Plot menu using the TI-84 Plus navigation keys,
announces the status of plots 1 through 3 and whether they are enabled and
disabled.
The following is announced with each "Y#" equation:
1. The equation string
2. If the equation is enabled or disabled
3. The style of the graph
Orbit Research
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