Drawing Lines - Texas Instruments TI-80 Manual Book

Drawing Lines

While a graph is displayed, LINE( lets you use the cursor to define a line on the
graph. If a graph is not displayed, the instruction is copied to the Home screen.
Directly on a
Graph
From the Home
Screen or a
Program
7-4 Draw Operations
To define a line directly on a graph:
1. When a graph is displayed, select
DRAW DRAW
2. Position the cursor at the beginning point of the line you
want to draw. Press ¸.
3. Move the cursor to the end point of the line you want to
draw. The line is displayed as you move the cursor. Press
¸.
To continue to draw lines, repeat steps 2 and 3. To cancel
LINE( , press M
(
LINE( DRAW DRAW
coordinates (X1 Y1) and (X2
,
as expressions.
LINE( X1 , Y1 , X2 , Y2
For example, enter
then press ¸.
menu (item 2).
.
, item 2) draws a line between the
Y2). The values may be entered
,
)
LINE(0,0,6,9) on the Home screen, and
LINE( from the