Would you like to be able to translate know-how into computer-based solutions quickly and efficiently? APL is an array-oriented programming language that will change the way you think about problems and data. It doesn't take long to learn enough to participate in the competition. Many previous winners of the competition learned APL after they heard about the competition – APL is easy to learn and fun to use, and this is your opportunity to profit from the experience!
(Disclaimer: I work for Dyalog and worked on the implementation with a few colleagues)