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Chapter 4: Graphing Features
U:
Note:
W:
Xmin/Xmax
Ymin/Ymax
62
Press this button to trace the graph drawn on the screen, to
obtain the X-Y coordinates:
1. While the graph is displayed, press
the U key. The cursor appears,
flashing on the graph line, with the
present X-Y coordinates.
2. Trace the graph using the ; or
' keys. The ; key de-
creases the value of x, while the ' key increases it.
3. Pressing the U key again will redraw the graph, with the
cursor at the center of the screen. If the cursor is moved
beyond the range of the screen, pressing the U key will
redraw the screen centered around the cursor.
4. When done, press the C key to escape the tracing
function.
If more than one graph is displayed on the screen, use the {
or } keys to switch the cursor from one graph to the other.
• If the U key is not activated, the cursor will not be bound to
the graph. Pressing the ;, ', {, or } keys
will position the free-moving flashing cursor on the graph
display.
• Under the tracing mode in the parametric coordinate graph, the
T value will also be displayed.
Displays the graph window setup.
Rectangular coordinate system
Minimum and maximum
values of x-axis, respectively
Scale of x-axis
Xscale
Minimum and maximum
values of y-axis, respectively
Scale of y-axis
Yscale
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