2**3

[download]

or 

exp(log(2)*3)

[download]

** and other operators are documented in perlop. exp, log and other core functions (aka "named operators") are documented in perlfunc.

Update: Added the exp-log expression. It's not very useful in Perl, but I threw it in since it's useful in languages without an exponentiation operator or function. In fact, ** is probably implemented as the exp-log expression.

In reply to Re: some number to the power of any other number by ikegami
in thread some number to the power of any other number by dbdiaz

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