A few fields that use matrix computations extensively that come to mind: robotics, graphics, control, machine learning. I'd go as far as saying that matrix com

A few fields that use matrix computations extensively that come to mind: robotics, graphics, control, machine learning. I'd go as far as saying that matrix computation plays an important role in more or less every kind of programming except for web/app development. edit: As another comment points out, the PEP actually answers this question too and contains a slightly more comprehensive list of disciplines where matrices find frequent use: http://legacy.python.org/dev/peps/pep-0465/#but-isn-t-matrix-multiplication-a-pretty-niche-requirement http://legacy.python.org/dev/peps/pep-0465/#but-isn-t-matrix...