This program is a simple touchscreen-enabled calculator.
It also recognizes dates and times and allows the user to perform
operations on dates and times.
3/15/1971 - 0 = 44.663 (currently 44 years old, zero is magic for now)
3/15/1971 - 9/8/2016 = 45.5178 (will be 45 years old on 9/8/16)
3/15/1971 - 5/2/1983 = 12.1397 (was 12 years old on 5/2/83)
1:15:23 + 3:45 = 01:19:08
1:19:08 ÷ 9.32057 = 00:08:29 (15K runners pace per mile)
The screen is divided into three areas, lower right area is the keypad
which functions on touchscreen, the upper right area is the input
display, and the left area is the report.
The report has three columns, OP, DATA and RES. The OP column
shows the operation (ie, +, -, * or ÷), DATA shows the input information,
and RES shows the result of the operation. The operation is always
performed on the current DATA and preceeding RES value, therefor
will have a running tally. If you wish to start fresh, press the NEW
button on the keypad.