A Broken Calculator

This particular instance of the ubiquitous tool happens to malfunction. Obviously, the calculator cannot serve its intended general purpose. Instead, the task is to somehow compute the integers from 1 through 15 with the limited means the calculator offers. 15 numbers may be computed in any order. Those already computed will be listed in the space just above the calculator.

This applet requires Sun's Java VM 2 which your browser may perceive as a popup. Which it is not. If you want to see the applet work, visit Sun's website at https://www.java.com/en/download/index.jsp, download and install Java VM and enjoy the applet.

Broken calculator - an uncommon tool for arithmetic exercise

What if applet does not run?

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