Postfix Notation Calculator
This calculator uses postfix notation, and works a little
differently from calculators you may have used.
Suppose you want to add two numbers. Enter the first number.
Press "Enter." This commits the first number into the
calculator's memory. Then enter the second number.
After that, enter the type of operation (such as "+")
that you wish to perform.
This is a sample of JavaScript in action.
If you view the source (choose Document Source
from the View menu), you'll see that a number of
functions, written in JavaScript, are located in the header
of this HTML file. These functions are used to perform
various math and formatting operations on the client machine.