Federgraph app for iPhone and iPad

Federgraph is a function plotter app to visualize a special built in function z=f(x, y) in 3D. The physical model behind the app is a system of springs. The mathematical equations are hidden from the user and do not need to be solved. Watch the plot change as you manipulate parameters.

The built in function produces a variety of colorful pictures, some of which appear to have a face!

Changing the parameters of the physical model will trigger a complete recalculation of the image, which is fast enough on the device when using a lower resolution. Use higher resolutions for making screenshots.

The defining text of an image can be exported to the clipboard for use in the desktop application. All images you create can be reproduced from a few lines of sharable text data.