The input/output area
=====================

   Within this area (the upper) you see a String gadget and a ListView
gadget.  The String gadget is used to enter the expressions you want to
calculate.

   Within the ListView you see a history of all entered expressions and
results. Per default the left column of the ListView is used to display
the expression, whilst the right one reflects the result. You may set
the number of lines bufferd using the Preferences. Furthermore you may
tell MUIProCalc how to format the entry, i.e. you may have four
different output types.  See  History settings, to find out more about
history settings.