Reference Topics 4-1

Egyptian calculator:
http://www.isomedia.com/homes/mjohns/calc.htm

Roman numeral calculator:
http://www.novaroma.org/via_romana/numbers.html

Cuneiform calculator:
http://it.stlawu.edu/~dmelvill/mesomath/calculator/scalc.html

Links to information on numeration systems:
http://mathforum.org/alejandre/numerals.html