This program is to demonstrate quality function graphing with adaptive axis labels. The program is pretty simple. There are four static functions displayed, each in a different color. You can move the crosshairs around the screen to get an accurate reading on the coordinates at that location. LMB drag moves the graph. Holding the RMB activates graph movement. Scroll wheel zooms in and out on the center of the screen.
Download here :
FunctionGraph.zip (win32 binary)
FunctionGraph.7z (win32 binary)
And here's a screenshot of the program in action :