Ramanujan tau function

The Ramanujan tau function, denoted as \(\tau(n)\), is a function in number theory that arises in the study of modular forms. It is defined for positive integers \(n\) and is deeply connected to the theory of partitions and modular forms. ### Definition The tau function is defined via the coefficients of the q-expansion of the modular discriminant \(\Delta(z)\), which is a specific modular form of weight 12.