The Edit Keys - Texas Instruments TI-80 Manual Book

The Edit Keys

The arrow keys near the upper right of the keyboard control the movement of
the cursor. In normal entry, a keystroke types over the character or characters
at the position of the cursor. The 4 and y / keys delete or insert
characters.
Key(s)
9 or 6
7 or 8
2 6
2 9
¸
M
4
y /
y
?
y <
@
1-8 Operating the TI-80
Action(s)
Moves the cursor within an expression. These keys repeat
when you hold them down.
Moves the cursor between lines within an expression. These
keys repeat when you hold them down.
¦
On the top line of an expression on the Home screen, 7
moves the cursor to the beginning of the expression.
¦
On the bottom line of an expression on the Home screen,
8 moves the cursor to the end of the expression.
Moves the cursor to the beginning of an expression.
Moves the cursor to the end of an expression.
Evaluates an expression or executes an instruction.
¦
On a line with text on the Home screen, clears (blanks) the
current line.
¦
On a blank line on the Home screen, clears everything on
the Home screen.
¦
In an editor, clears (blanks) the expression or value where
the cursor is located; it does not store a zero.
Deletes the character at the cursor. This key repeats.
Lets you insert characters at the underline cursor. To end
insertion, press y / or a cursor key.
Next key press is a
printed to the left above a key). The cursor changes to Ž. To
, press y again.
cancel 2nd
Next key press is an
character to the right above a key). The cursor changes to
, press ? or a cursor key.
To cancel
ALPHA
Sets ALPHA-LOCK
ALPHA character. The cursor changes to
, press ?.
ALPHA-LOCK
Allows you to enter an
mode without pressing ? first.
2nd operation (the gold-colored label
character (the light gray
ALPHA
; each subsequent key press results in an
X in FUNC mode or a
A
 . To cancel
T in PARAM
.