Calculate a seashell

Do you want to create a seashell on your computer? For Windows, look no further than the Seashell Generator. You can see how the shell changes by altering the parameters. As you can expect, calculating the shape has to do with the exponential function e^x^, again. When will there be a national holiday for e?

The program is couresy of Øyvind Hammer, Natural History Museum, University of Oslo. You can download it here.