June 2nd, 2011, 10:15 AM  #1 
Newbie Joined: Jun 2011 Posts: 1 Thanks: 0  Logarithms
What does log^2(n) means? Is it (logn)^2 or loglogn ???? 
June 2nd, 2011, 10:34 AM  #2 
Senior Member Joined: Sep 2010 Posts: 101 Thanks: 0  Re: Logarithms 
June 4th, 2011, 12:38 AM  #3 
Senior Member Joined: Apr 2007 Posts: 2,140 Thanks: 0 
(log n)².

June 4th, 2011, 01:25 AM  #4 
Global Moderator Joined: Nov 2009 From: Northwest Arkansas Posts: 2,766 Thanks: 4  Re: Logarithms
It's ambiguous. http://math.stackexchange.com/questions ... itsresult "calling" a function twice in succession can be denoted f^2, yet so can the product of a function with itself. 
June 4th, 2011, 04:01 AM  #5 
Senior Member Joined: Jul 2010 From: St. Augustine, FL., U.S.A.'s oldest city Posts: 12,211 Thanks: 520 Math Focus: Calculus/ODEs  Re: Logarithms
Also, I've seen the notation used to denote the nth derivative of f.

June 4th, 2011, 05:00 PM  #6 
Senior Member Joined: Apr 2007 Posts: 2,140 Thanks: 0 
Trigonometry: sin^nu, cos^nu and tan^nu.


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