Question

what is SAD property in mathematics ?​

Answer 1

In number theory, a -happy number is a natural number in a given number base that eventually reaches 1 when iterated over the perfect digital invariant function for . Those numbers that do not end in 1 are -unhappy numbers (or -sad numbers).

Answer 2

Step-by-step explanation:

In mathematics, a property is any characteristic that applies to a given set. ...