Earlier this morning, back when it was still dark out and I was too tired to turn on the lights in my office, I was seated at my desk, using the stark lighting of the monitor to see the keyboard. (Sound familiar to anyone?) I was using the calculator to figure out some basic maths (Sorry to Mr. Molnar, my maths teacher, for needing to use a calculator for basic addition), when I got this amazing message on the calculator: Result of function is undefined. How cool is that! Suddenly inspirted, I flicked on the light and tried to re-create whatever computation I had just done to achieve that message. I tried for several minutes before I started to think it was all a dream in my head. Good thing I remembered to save a screen shot.