little-oh

From: Andersen (alibandali_at_hotmail.com)
Date: 01/19/05


Date: Wed, 19 Jan 2005 07:58:35 +0100

Hi,

I am a computer science student. In computer science the little-oh
function is defined as (unless I am wrong):
if g(n) is in o(f(n)), then
    g(n) < n1 * f(n) for all n>=n2, for two constants n1 and n2 >= 0

(reverse is true also)

I recently bumped in to the following definition for little-oh notation
in a math book (on stochastic processes) :
if g(n) is in o(f(n)) then
lim n->0 g(n)/f(n) = 0

What is the correct little-oh definition? These two seem to contradict
eachother, in the first definition x is in o(x^2) while according to
the second definition we would get x^2 is in o(x).

Please help,
Andersen



Relevant Pages

  • little-oh
    ... I am a computer science student. ... (reverse is true also) ... I recently bumped in to the following definition for little-oh notation ...
    (sci.math)
  • Re: little-oh
    ... > I am a computer science student. ... In computer science the little-oh ... Mitch Harris ...
    (comp.theory)
  • Re: little-oh
    ... >I am a computer science student. ... In computer science the little-oh ... o and Theta notation refers to functions of x or n as x or n ...
    (comp.theory)
  • Re: little-oh
    ... > I am a computer science student. ... i always thought that this is big-Oh instead of little-oh. ...
    (sci.math)