{"version":"1.0","type":"link","title":"Dirichlet function - Newikis","description":"In mathematics, the Dirichlet function is the indicator function of the set of rational numbers over the set of real numbers , i.e. for a real number x if x is a rational number and if x is not a rational number (i.e. is an irrational number).","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400}