  T-IFISS is a finite element software package for studying finite element
solution algorithms for deterministic and parametric elliptic partial
differential equations. The emphasis is on self-adaptive algorithms with
rigorous error control using a variety of a posteriori error estimation
techniques. The open-source MATLAB framework provides a computational
laboratory for experimentation and exploration, enabling users to quickly
develop new discretizations and test alternative algorithms. The package is
also valuable as a teaching tool for students who want to learn about
state-of-the-art finite element methodology.
