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Chapter 9: Function Graphing
7309ENG.DOC CH 9 Function Graphing, English Julie Hewlett Revised: 07/29/98 12:14 PM Printed: 05/19/99
9:01 AM Page 178 of 24
To pause while a graph is being drawn, press b; press
b again to resume plotting.
Press ^ to stop graphing. Press * to start over and plot
again.
Smart GraphSmart Graph
When you press *, the Graph screen immediately displays
(instead of replotting) the previous function graph(s) if no
changes were made. If changes were made, the functions are
replotted.
The graph is replotted if you have:
• Changed a function.
• Selected or deselected a function.
• Changed the value of a variable in a selected function.
• Changed a
WINDOW
variable or a - g setting.
• Cleared drawings by selecting
ClrDraw
(Chapter 10: Draw).
• Changed a stat plot definition (Chapter 6: Statistical
Plots).
Exploring the Graph with the Free-Moving CursorExploring the Graph with the Free-Moving Cursor
Use ", !, $, and # to move the cursor around the Graph
screen. When you first display the graph, the cursor is in the
middle of the screen but is not visible. When you press a
cursor key, the cursor moves from that point and can be seen.
(Remember to use the - g
CoordOn
setting if you want
to see the (X,Y) coordinates at the bottom of the screen.)
Exploring a Function Graph with Exploring a Function Graph with
)
Pressing ) allows you to move the ! and " cursor keys
from one plotted point to another and displays the cursor
coordinates at the bottom of the screen (if
CoordOn
is set). If
ExprOn
(- g) is set, the expression being traced
appears in the top left corner.
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