gives the hyperfactorial function .
- Mathematical function, suitable for both symbolic and numeric manipulation.
- Hyperfactorial is defined as for positive integers .
- Hyperfactorial is defined as for positive integers and is otherwise defined as .
- The hyperfactorial function satisfies .
- Hyperfactorial can be evaluated to arbitrary numerical precision.
- Hyperfactorial automatically threads over lists.
Introduced in 2008