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 of the matrix in the input or output text file. A help file is provided with examples. The precision of the computed matrix can be determined interactively before it is saved. The size of the matrix is only limited by the size of the computer memory and the limits of the MSFlexgrid. The columns of the matrix grid can be resized and the matrix calculator can be resized. The minimum and maximum values in a computed matrix are reported as part of the output. A default naming convention is used for output matrices based upon the name(s) of the input matrix/matrices. A description of the matrix is optional information that can be saved with the matrix. This software is ideal for students studying matrix algebra or applying matrix algebra in fields of study such as science, engineering, surveying and physics.