Texas Instruments Derive 5 Introduction Manual page 35

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The plot window "follows" the square. This means that the plot ranges for the horizontal and the
vertical axes are changed automatically to ensure that the cross is visible. Since this mode can
destroy a chosen plot range, follow mode should be used carefully and is therefore switched off
by default.
Turn follow mode off by selecting
There are several ways to restore a previous range:
While follow mode is on, you can click the left mouse button at a horizontal position where
the corresponding vertical curve coordinate is within the original plot range. This requires
some knowledge and reasoning about the curve.
Independent of the follow mode status you may use the
Select the Set>Plot Range
then leave the dialog.
If available, double click on an embedded version of the original graph. This last option is
particularly convenient.
Restore the original graph by double clicking on the embedded graph.
Trace mode was lost because the embedded graph was produced before trace mode was turned
on. Switch trace mode on again to start looking for the polynomial's zeros.
Switch trace mode on with
can get to the horizontal axis.
D displays the square coordinates as
ERIVE
different.) Using the left arrow key (æ) once moves the square to
Options>Follow Cross
or the Set>Plot Region
, then move the square to the rightmost zero, as near as you
Cross: 1.62, 0.01688368
Chapter 2: Documenting Polynomial Zero Finding
again.
Center on origin
command, use the (_Reset_) button,
. (Your numbers might be
Cross: 1.6, -0.1512
button .
. You have