EXPO & EXPO/SE (Leading Market Technologies)

This company's products are often used for analysis in the financial industry. "It's flagship product EXPO has a powerful backbone of mathematical, statistical, and time series analysis routines, paired with a highly visual, customizable, easy-access front-end." They also offer a high speed server. Many of their products can be downloaded for a free trial. They also offer a free student version. It is a subset of the regular version in only two ways: it supports only 12 open windows, and it cannot perform realtime analysis.

http://www.lmt-expo.com/