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User:Temperal/The Problem Solver's Resource7

< User:Temperal
Revision as of 21:13, 5 October 2007 by Xpmath (talk | contribs) (→‎<span style="font-size:20px; color: blue;">Combinatorics</span>)



The Problem Solver's Resource
Introduction | Other Tips and Tricks | Methods of Proof | You are currently viewing page 7.

Combinatorics

Factorial

The factorial of a number $n$ is $n(n-1)(n-2)...(1)(0)$ or also as ,, and is denoted by $n!$.

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