Sounds: Audio feedback can be selected using the
"Menu>Options>Sounds" screen.
You can add an audible 'click' sound when you tap a key.
You can choose to adjust the sound level by the current system sound
level setting.
You can scale the sound level by a certain percent, relative to the system setting.
Preferences: Preferences can be set
using the "Menu>Options>Preferences" screen.
You can set the calculation mode to RPN (Reverse Polish Notation)
or Algebraic. In 'Algebraic' mode, operator precedence is followed,
and 10 levels of nesting are provided. Visual cues are provided
to show the current operation and the level of nesting.
You can state with which type of keypad your device is equipped. This is
important for devices such as the Treo600, where the keypad detection
is not automatic.
The screen depth can be adjusted, which can be beneficial on some
devices. You can select B/W, 4 shades, 16 shades, or color. Depending
on your contrast settings, grayscale devices might display better in
B/W or 4 shades. Experiment to find the setting that looks best
to you.
The stack depth can be specified up to 10 deep.
You can choose to keep the device screen power on when the device
is plugged into a charging system (either in cradle or attached to
the charging cable).
On some RPN calculators, tapping the 'Enter' key does NOT always
push the stack. You can simulate this behavior by de-selecting this
option.
For financial calculations, you would, by default, enter 10% as
"10". You can choose to enter these values as decimal, or in this
case, "0.10".
You can choose your preferred method to enter date values. If you select
mm.ddyyyy, then you would enter December 25, 2004 as "12.252004".
The 'Enable debug' option is used for debugging purposes, and can
be left disabled. You would only need to enable this if specific
debugging codes have been added into the application, and you are
helping to troubleshoot something on your device.