Physicians routinely recommend a high-fiber diet that is full of roughage, or insoluble fiber, in order to keep things moving along. While this can be helpful, in some cases a high-fiber diet may actually promote intestinal infection. High-fiber diets are also high-residue diets.
The MATRIX program is designed to perform and to teach row operation algorithms on matrices. The program can work in a decimal floating-point mode in which calculations are carried out to 18 significant digits, or it can work in a fraction mode with exact rational arithmetic.
The program can calculate sets of basis vectors for the kernel, range, and row space of a matrix. The inter-matrix operations include addition, subtraction, and multiplication of matrices as well as scalar multiplication. The program provides easy entry and editing of matrices which may be up to 20x20 in size. Matrices may be re-dimensioned and rows and columns can easily be inserted or deleted. Matrices may be saved to and/or read from disk files. A mouse is recommended but is also optional. Each matrix occupies a window and as many as 9 overlapping windows may be open on the desktop at once. This program works in a text display mode only and does not require any graphics hardware.