Texas Instruments TI-73 Benutzerhandbuch

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     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.