HP 39g+ - Manual (Page 68)

3-8 Function aplet
To change font
size 27. Display table numbers in large font.
7DB—
To display the
symbolic
definition of a
column 28. Display the symbolic definition for the F1 column.
*A,
9@AI—
The symbolic definition of
F1 is displayed at the bottom
of the screen.
Function aplet interactive analysis
From the Plot view (
>3/27@), 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). See “FCN functions” on page 3-9. The FCN
operations act on the currently selected graph.
The results of the FCN functions are saved in the following
variables:
• AREA
• EXTREMUM
• ISECT
• ROOT
• SLOPE
For example, if you use the ROOT function to find the root of
a plot, you can use the result in calculations in Home.