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0! = 1

Name: Anonymous 2008-04-13 3:06

No matter how many times someone tries to explain it to me, I can never understand it.

/sci/ halp plz?

Name: Anonymous 2008-04-13 16:34

I'm not sure if this is correct, but I've always thought about it this way:

3!x = 1*2*3*x
2!x = 1*2*x
1!x = 1*x
0!x = x

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