Nick Jenkins wrote:
There are two conditional functions and a mathematical expression function.
Cool! Dibs on [[:en:Template:Factorial]] :
{{if: {{{1}}}=1 | 1 | {{expr: {{{1}}} * {{{{PAGENAME}} | {{expr: {{{1}}} - 1}} }} }} }}
... or something like that.
I hate to spoil your fun, but that won't work. We have the recursion detector enabled for a reason.