## Reference Topics 4-1

Egyptian calculator:

http://homepage.isomedia.com/~mjohns/calc.htm

Roman numeral calculator:

http://www.novaroma.org/via_romana/numbers.html

Cuneiform calculator:

https://www.dcode.fr/babylonian-numbers

Links to information on numeration systems:

http://mathforum.org/alejandre/numerals.html… See the whole entry