Texas Instruments TI-89 User Manual
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Basic Function Graphing
307
The function list now shows the new function, which is automatically selected for
graphing.
graphing.
Note:
If you accidentally move the cursor to the entry line, press
N to move it back to
the function list.
Editing a Function
Editing a Function
Editing a Function
Editing a Function
From the Y= Editor:
1. Press
D and C to highlight the function.
2. Press
¸ or … to move the cursor to the entry line.
3. Do any of the following:
•
Use
B and A to move the cursor within the expression and edit it. Refer to
“Editing an Expression in the Entry Line” in Operating the Calculator.
– or –
•
Press
M once or twice to clear the old expression, and then type the new
one.
4. Press
¸.
The function list now shows the edited function, which is automatically selected for
graphing.
graphing.
Note:
To cancel any editing changes, press
N instead of ¸.