[julia-users] Raising an array by a power

[yaoismyhero]

Hi Julia users,
I am absolutely embarrassed to ask this question, but I have not been able 
to find the correct combination of query words to yield the desired answer 
in the documentation or Google. Anyhow, what function could I use to raise 
an array to a power?

testarray = Int64[1,2,3,4]
pow(testarray,2)

or 

power(testarray,2)

do not work. 

Thank you for your help.

Regards,
WX