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What does ! mean?

Fractions, ratios, percentages, exponents, number patterns, word problems without variables, etc.
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Motherof8
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What does ! mean?

Postby Motherof8 » Tue May 10, 2011 5:44 pm

I have often run across the symbol ! used in Mathematical problems. What does it mean in this context?
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Martingale
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Re: What does ! mean?

Postby Martingale » Tue May 10, 2011 6:54 pm

Motherof8 wrote:I have often run across the symbol ! used in Mathematical problems. What does it mean in this context?



http://en.wikipedia.org/wiki/Factorial
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