[Israel.pm] What does this code do?

[Moshe Kaminsky]

* Shlomi Fish <shlomif at iglu.org.il> [02/05/04 15:00]:
> BTW, there's no need to use exp() and log() in this case. You could 
> have written it as:
> 
> perl -e '$N = shift; $num_true_cases=3**$N-3*(2**$N)+3; printf "%d\n", 
> $num_true_cases'
> 
> With "**" which is the power operator.

Thanks! I was looking for it.

Moshe

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    Moshe Kaminsky <kaminsky at math.huji.ac.il>
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