This simulation demonstrates the error that can be introduced by rounding.
By using the pull-down menu, you can select the number of significant
digits from 1 to 5 for each number you enter. The actual numbers are entered
by clicking on the text box and typing the numbers. The operations on
the numbers (addition, subtraction, multiplication, and division) can
be changed by using the pull-down menus.
The simulation calculates the resultant numbers using the actual entered
numbers and the rounded numbers. The percent difference between the two
is then shown. Only three operations are permitted on four numbers.