Texas Instruments TI-82 STATS Manual Book page 31

Display Cursors
In most cases, the appearance of the cursor indicates what will
happen when you press the next key or select the next menu
item to be pasted as a character.
Cursor Appearance
Entry Solid rectangle
$
Insert Underline
__
Second Reverse arrow
Þ
Alpha Reverse A
Ø
Full Checkerboard
rectangle
#
If you press ƒ during an insertion, the cursor becomes an
) If you press y during an insertion, the
underlined (
A A
underline cursor becomes an underlined # ( # ).
Graphs and editors sometimes display additional cursors, which
are described in other chapters.
Effect of Next Keystroke
A character is entered at the cursor;
any existing character is overwritten
A character is inserted in front of the
cursor location
A 2nd character (yellow on the
keyboard) is entered or a 2nd
operation is executed
An alpha character (green on the
keyboard) is entered or
executed
No entry; the maximum characters are
entered at a prompt or memory is full
Operating the TI-82 STATS 1-5
is
SOLVE