The 90's

MathTensor became just one example of many hundreds - if not thousands by now - of the programmability and flexibility of Mathematica. No other system had the pattern matching and other constructs permitted such a range of computer mathematics functionality.

Another thing we noticed what that though we wrote MathTensor for use in quantum gravity calculations, it was general purpose. That is, it is being used in

Physics, Mathematics, Engineering, Astrophysics
Chemistry, Geology, Statistics, Computer Graphics
Medical Research

in university departments, government research labs, and business labs. I consult for an organization that is using it in textile research to study how yarns are formed from congruences of fibers.

That same organization has used Mathematica for

Signal Analysis, Wavelets, Graphics
Genetic Algorithms, General Math
Presentations

Mathematica has become a Universal Language for the doing of and presentation of mathematical research. Even something as esoteric as quantum gravity can lead to the development of software useful in eye research. The combination of Wolfram Research's support, numerous experienced developers, and the Internet provide a rich set of resources for all Mathematica users.

Part of this is the MathGroup mailing list I started in 1989 and expanded to the newsgroup comp.soft-sys.math.mathematica in 1994. Almost 13,000 messages have gone out to the newsgroup in that time. Wolfram Research's technical people, many of the world's most expert Mathematica users, and even new users, have provided significant information over the years.