HP 39g+ - Manual (Page 19)

Getting started 1-9
Input forms
An input form shows several fields of information for you to
examine and specify. After highlighting the field to edit, you
can enter or edit a number (or expression). You can also select
options from a list (
8CPPT— ). Some input forms include items
to check ( •8CF— ). See below for an example of an input form.
Reset input
form values To reset a default field value in an input form, move the cursor
to that field and press
>'(/@. To reset all default field values in
the input form, press
>6+,)7@
CLEAR .
Mode settings
You use the Modes input form to set the modes for HOME.
H I N T Although the numeric setting in Modes affects only HOME,
the angle setting controls HOME and the current aplet. The
angle setting selected in Modes is the angle setting used in
both HOME and current aplet. To further configure an aplet,
you use the
SETUP keys ( >6+,)7@>3/27@ and >6+,)7@>180@).
Press
>6+,)7@
MODES to access the HOME MODES input form.
Setting Options
Angle
Measure Angle values are:
Degrees. 360 degrees in a circle.
Radians. 2
π
radians in a circle.
Grads. 400 grads in a circle.
The angle mode you set is the angle
setting used in both HOME and the
current aplet. This is done to ensure that
trigonometric calculations done in the
current aplet and HOME give the same
result.