Mathematica 9 is now available
THIS IS DOCUMENTATION FOR AN OBSOLETE PRODUCT.
SEE THE DOCUMENTATION CENTER FOR THE LATEST INFORMATION.
Mathematica > Mathematics and Algorithms > Discrete Mathematics > Combinatorial Functions >
Mathematica > Mathematics and Algorithms > Mathematical Functions > Integer Functions > Combinatorial Functions >

Hyperfactorial

Hyperfactorial[n]
gives the hyperfactorial function H(n).
  • Mathematical function, suitable for both symbolic and numeric manipulation.
  • Hyperfactorial is defined as H(n)⩵product_(k=1)^nk^k for positive integers n.
  • The hyperfactorial function satisfies H(z)=z^z H(z-1).
Evaluate numerically:
Evaluate for complex argument:
Evaluate to arbitrary precision:
The precision of the output tracks the precision of the input:
Hyperfactorial threads element-wise over lists:
TraditionalForm formatting:
The discriminant of the Hermite polynomial is related to the hyperfactorial:
New in 7
Ask a question about this page  |  Suggest an improvement  |  Leave a message for the team