Texas Instruments TI-73 EXPLORER - Manual (Page 198)

192
Chapter 10: Drawing
7310ENG.DOC Draw Texas Instruments Revised: 05/29/98 6:43 PM Printed: 05/19/99 9:01 AM Page 192 of 22
Horizontal and Vertical from the Graph Screen
To draw a horizontal or vertical line on the Graph screen:
1. From the Graph screen, select 2
3
or
4
. The cursor
appears in the middle of the Graph screen. The X- and
Y-coordinates are shown at the bottom of the screen.
2. A line is displayed that moves as you move the cursor.
Place the cursor on the Y-coordinate (for horizontal lines)
or the X-coordinate (for vertical lines) through which you
want the line to pass.
3. Press b to draw the line on the graph.
4. Repeat steps 2 and 3, as necessary. To cancel
Horizontal
or
Vertical
, press :.
Draw a horizontal line from the
Graph screen.
* 2
1
2
3
# $ (as necessary)
b
Draw a vertical line from the
Graph screen.
* 2
4
" ! (as necessary)
b
Horizontal and Vertical from the Home Screen or
Program Editor
From the Home screen or the Program editor,
Horizontal
draws
a horizontal line at Y=y. y can be an integer or an expression.
Horizontal
y
³
³
' is set to
standard default
values.