Texas Instruments TI-89 Manual Book page 50

Inserting or
Overtyping a
Character
Tip: Look at the cursor to
see if you're in insert or
overtype mode.
Replacing or
Deleting Multiple
Characters
Tip: When you highlight
characters to replace,
remember that some
function keys automatically
add an open parenthesis.
The has both an insert and an overtype mode. By
TI-89 / TI-92 Plus
default, the
TI-89 / TI-92 Plus
the insert and overtype modes, press 2 /.
If the TI.89 / TI.92 Plus is in:
Thin cursor between
characters
Cursor highlights
a character
First, highlight the applicable characters. Then, replace or delete all
the highlighted characters.
To:
Highlight multiple
characters
Replace the
highlighted
characters
— or —
Delete the
highlighted
characters
is in the insert mode. To toggle between
The next character you type:
Will be inserted at the cursor.
Will replace the highlighted
character.
Do this:
1. Move the cursor to either side of the
characters you want to highlight.
To replace sin( with cos(, place
the cursor beside sin.
2. Hold ¤ and press A or B to highlight
characters left or right of the cursor.
Hold ¤ and press B B B B.
Type the new characters.
Press 0.
Chapter 2: Operating the Calculator 33