Rising factorial

The rising factorial \(x^{(n)}\) is defined as \(x \cdot (x + 1) \cdot (x + 2) \cdot \ldots \cdot ((x + n) - 1)\) .Rising Factorial from Wolfram MathWorld
This function has a growth rate of about \(f_2(x)\) in the FGH.
==Examples==
\(x^{(1)}\) = \(x\)
\(x^{(2)}\) = \(x(x+1)\)=\(x^{2}+x\)
\(0^{(n)}\) = \(0 \cdot 1 \cdot ...\) = \(0\) 
== Sources ==
== See also ==
Category:Functions
Category:Factorials