To copy the previous expression, first navigate through the history by using the TI-84
Plus Up and Down navigation keys. When you reach the answer or expression you
wish to copy, press the
Enter
key and the history item you are on is copied to the
point where your calculator cursor was before moving through the history.
When the
Enter
key is pressed with nothing at the calculator cursor and no item
selected, both the previous expression and answer are copied at the calculator cursor
location. In this case, the complete expression with its answer is announced.
If the
2nd
key and
Enter
key are pressed, the previous expression is copied on the
screen and announced.
Note:
You cannot copy a matrix. If you attempt to copy a matrix from the history, the
cursor is returned to the calculator cursor.
Clear Operations
While on the Home screen, pressing the
Clear
key can produce the following results:
1.
If you select an expression or answer and press Clear, the calculator clears the
selection and moves the cursor to the next item.
2.
If no particular expression or answer is selected, the calculator clears the entire
screen and Orion announces, "Screen Clear."
3.
3If you press Clear while entering an expression, the calculator clears the entire
expression and announces "Expression Cleared." Other screen content is not
affected.
Note:
Clearing the screen does not clear the history. It clears the screen and moves
your cursor to the top of the screen. You can still retrieve your history by pressing the
TI-84 Plus Up navigation key.
Graph Screen Operations
The sections below describe the Graph screen operations with the Orion TI-84 Plus. It
is important to note when graphing with the Orion TI-84 Plus, you should use
the
Trace mode
, not the Graph mode. The Trace mode cursor delineates the graphed
equation, while the Graph mode cursor moves freely around the graph; however, the
Graph mode currently does not give much helpful information in regards to the
equation. You can do almost all graphing functions in Trace mode.
Equations Announcement - Trace Cursor Announcement
In the Trace mode, equations are announced in the following situations:
