Flowdock
-@() public

Unary minus (returns an integer whose value is 0-big)

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May 19, 2010
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Looking for "to the power of"?

If you’re trying to calculate 2 to the power of 2, the ^ method is not what you want. Try ** instead.

2^2  #=> 0
2^8  #=> 10
2**2 #=> 4
2**8 #=> 256