Title Text:Conveniently approximated as e+2, Pau is commonly known as the Devil’s Ratio (because in the octal expansion, ‘666’ appears four times in the first 200 digits while no other run of 3+ digits appears more than once.)< Origin:https://xkcd.com/1292/ https://www.explainxkcd.com/wiki/index.php/1292:_Pi_vs._Tau…