1)   Matrix Calculator 1.1
Matrix calculator operations include: transpose, invert, scale, compute determinant and trace, adjoint, multiply, add, and subtract. Matrices can be saved to a text file for future sessions. A delimiter can be specified to separate elements.

 2)   Linear Algebra 2
Performs computations associated with matrices: Solves systems of linear equations, finds sum, difference, product, determinant, trace, inverse, adjoint, transpose, eigenvalues, eigenvectors, LU factors, QR factors, tests for definiteness, etc.