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CHAPTER 4
(Graph display screen)
Press 3 to return to the graph display
screen where the cursor pointer is displayed.
Using
<>≤≥, move the cursor
pointer to a desired location and press ® to
fix it. (Using the same procedure, you can draw
any number of horizontal lines subsequently.)
* To cancel the horizontal line draw screen,
press ¬.
(Other screens)
Press 3 to display the message “H_line”.
Input the coordinates of a location where you
wish to draw a horizontal line and press ®
to draw it on the graph screen.
The following syntax is used to input the
coordinates.
[H_line 5]
(Horizontal line is drawn at “Y=5”.)
The same key operations used to draw a H-line
are used to draw a vertical line. However, to
specify the coordinates, the following syntax is
used.
[V_line 6]
(V_line is drawn at “X=6”.)
(Graph display screen)
Press 5 to display the cursor pointer on the
graph. Using <>, move the cursor
pointer to the desired location on the graph and
press ® to draw a tangential line or input a
numeric value (X-axis coordinate value) to draw
a tangential line corresponding to the X-axis
coordinate of the graph.
* Use ≤≥ to change the selection of
graph to be displayed.
(Other screens)
Press 5 to display the message “T_line (”.
Input a graph equation and X-axis coordinate
value where you wish to draw a tangential line
and press ® to draw the tangential line on
the graph screen.
[3 H_line] Draws a horizontal line at a
specified location.
[4 V_line] Draws a vertical line at a
specified location.
[5 T_line(] Draws a tangential line at the
point on the graph.
EL-9650-(04)En (079-134) 8/7/00, 9:08 PM108
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