HAMMING, a MATLAB library which implements some simple versions of Hamming codes which can detect and correct errors in data.
The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.
HAMMING is available in a MATLAB version.
BANK, a MATLAB library which can compute the check digit associated with a US Bank Routing Number check digit, or it can report whether a 9-digit code is actually valid.
DICTIONARY_CODE, a MATLAB library which demonstrates how a text file can be compressed and decompressed using a dictionary code.
GRAY_CODE_DISPLAY, a MATLAB program which computes the Hamming distance tables for both the binary and Gray codes, and displays 3D plots that illustrate how the Gray code does a better job of providing nearby representations for nearby numbers.
ROT13, a MATLAB library which can encipher a string using the ROT13 cipher for letters, and the ROT5 cipher for digits.
UPC, a MATLAB library which can determine the check digit for a Uniform Product Code (UPC) or report whether a given UPC is valid.