Eureqa

=Eureqa= http://creativemachines.cornell.edu/eureqa "A robotic scientist" They used symbolic regression and evolutionary algorithms.
 * Eur eq a ** (pronounced "eureka") is a software tool for detecting equations and hidden mathematical relationships in your data. Its goal is to identify the simplest mathematical formulas which could describe the underlying mechanisms that produced the data. Eureqa is free to download and use.

There's a TED talk of it here. http://www.youtube.com/watch?v=gl5SY6x9C8o