1-12 Getting started
The cursor (highlight) is 
in the first field, Angle 
Measure.
2. Press   to display a 
list of choices. 
3. Press  to select 
Degrees,
 and press 
. The angle measure 
changes to degrees.
4. Press   to return to 
HOME.
HINT
Whenever an input form has a list of choices for a field, 
you can press   to cycle through them instead of using 
.
Aplets (E-lessons)
Aplets are the application environments where you 
explore different classes of mathematical operations. You 
select the aplet that you want to work with. 
Aplets come from a variety of sources:
• Built-in the HP 39gs (initial purchase). 
• Aplets created by saving existing aplets, which have 
been modified, with specific configurations. See 
“Creating new aplets based on existing aplets” on 
page 19-1.
• Downloaded from HP’s Calculators web site.
• Copied from another calculator.
Aplets are stored in the Aplet 
library. See “Aplet library” 
on page 1-16 for further 
information.
You can modify 
configuration settings for the graphical, tabular, and 
HP 39gs English.book  Page 12  Wednesday, December 7, 2005  11:24 PM