Texas Instruments TI-82 STATS Manual Book page 147

Drawing a Line
from the Home
Screen or a
Program
(horizontal line) draws a horizontal line at
Horizontal
be an expression but not a list.
y
Horizontal
(vertical line) draws a vertical line at
Vertical
expression but not a list.
x
Vertical
To instruct the TI-82 STATS to draw more than one horizontal
or vertical line, separate each instruction with a colon (
=y. y can
Y
=x. x can be an
X
:
Instructions 8–7
DRAW
).