|
Factorial2
n!! gives the double factorial of n.
Mathematical function (see Section A.3.10).
 .
 is a product of even numbers for even, and odd numbers for odd.
See The Mathematica Book: Section 3.2.5.
See also: Gamma.
Further Examples
THIS IS DOCUMENTATION FOR AN OBSOLETE PRODUCT. SEE THE DOCUMENTATION CENTER FOR THE LATEST INFORMATION. |