Identification Numbers and Check Digits

This is a framework for and index of many different INCD schemes.

References:

• http://support.csis.pace.edu/CSISWeb/docs/techReports/techReport194.pdf
• http://en.wikipedia.org/wiki/Check_digit
• http://www.csun.edu/~ac53971/pump/20090210_checkdigit.pdf
• https://www.uu.edu/dept/math/SeniorPapers/01-02/Oldham.pdf
• http://plus.maths.org/content/error-detection-and-correction
• http://www.uwyo.edu/bshader/mathtlcalgebra/barcodes.pdf
• http://jwilson.coe.uga.edu/emt668/emt668.folders.f97/waggener/units/idnumbers/checkdigits.htm
• http://en.wikipedia.org/wiki/Damm_algorithm