Plot-Table - HP 39g Master Manual

Plot-Table

The next item on the VIEWS menu is Plot-
Table. This option plots the graph on the right,
with the Numeric view on the right half screen.
Using the left/right arrow keys moves the
cursor in both the graph and the numeric
windows. See page 95 for information on how
to keep nice scales in the table view. When more than one function defined
in the SYMB view, pressing the up or down arrows changes the table focus
from one to another. In this case, with only one, it centers the table.
Let us switch now to a graph of the two
=
functions
F X 1( )
= +
3
F X 2( ) X 2 X
the right, using an XRng of -8 to 8.
Changing to Plot-Table gives the result shown
left. As you can see, the scale has been
preserved unchanged, although without labels.
The table on the right also uses a sensible
.
scale of 0 25 because of the choice of an x
axis scale of -8 to 8. Choice of scale in the
Plot-Table view is discussed in detail in the
"Tips and Tricks – Nice Scales" immediately following the chapter on the
Function aplet.
Looking at the table heading you will see that it
currently shows the function F1(X). The
left/right arrow keys move within that function,
with the cursor keeping track. Pressing the
up/down arrows now not only centers the table
highlight but, more importantly switches from
F1(X) to F2(X). The X column will not change.
−
2 &
X 1
− −
2
. This shown on
5 X 4
94