HP 39g+ - Manual (Page 63)

Function aplet 3-3
Change the
scale
6. You can change the scale to see more or less of your
graphs. In this example, choose Auto Scale. (See
“VIEWS menu options” on page 2-13 for a description of
Auto Scale).
>9,(:6@ Select
Auto
Scale PF—
Trace a graph
7. Trace the linear function.
*>, 6 times
Note: By default, the tracer
is active.
8. Jump from the linear function to the quadratic function.
*k,
Analyse graph
with FCN
functions
9. Display the Plot view menu.
H@IV—
From the Plot view menu, you can use the functions on
the FCN menu to find roots, intersections, slopes, and
areas for a function defined in the Function aplet (and
any Function-based aplets). The FCN functions act on
the currently selected graph. See “FCN functions” on
page 3-9 for further information.