Ho tradotto e in parte modificato il [url=https://www.geogebra.org/m/x4nrxpum][b]lavoro[/b][/url] di [url=https://www.geogebra.org/u/rousseau-wallon]Rousseau-Wallon[/url] che ringrazio. [br][br]Vedi anche: [br]• [url=https://en.wikipedia.org/wiki/The_Ciphers_of_the_Monks]https://en.wikipedia.org/wiki/The_Ciphers_of_the_Monks[/url][br]• [url=http://tangente-mag.com/maths_etonnantes.php?id=3693]http://tangente-mag.com/maths_etonnantes.php?id=3693[/url]

Dal [url=https://www.geogebra.org/m/x4nrxpum][b]lavoro[/b][/url] di [url=https://www.geogebra.org/u/rousseau-wallon]Rousseau-Wallon[/url]. [br][url=http://splashragazzi.altervista.org/]Renata[/url], 3 febbraio 2019