DistanceDemo.exe
When I made a program that had points I wanted to move around on the touch screen of the 3DS, when the stylus touches the touch screen, it simply checks which point is the closest even if it's a good distance away. It just has to be the closest. I then decided I wanted to see it visualized, so I made a program in SmileBasic to show a color for each point's touchable area. I wasn't quite satisfeid with it though because it was quite slow. I decided to recreate it for PC, and here it is. I found it a bit amusing. Just click and drag the points around.