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 June 17th, 2017, 12:31 AM #1 Newbie     Joined: Jun 2017 From: Iraq Posts: 4 Thanks: 0 How to find order of a recurrence relation? help Hi, I'm in a hurry, for example : an= an-1 + an^2-2 there order of this function is "2" how is that be? and what is the meaning of order please help me,
 June 17th, 2017, 03:10 AM #2 Global Moderator   Joined: Dec 2006 Posts: 20,114 Thanks: 1909 Did you intend the example to be a$_n$ = a$_{n-1}$ + a$_{n-2}$²? The order of a recurrence relation is the difference between the greatest and lowest subscripts of the terms of the sequence in the equation.
 June 17th, 2017, 11:09 AM #3 Newbie     Joined: Jun 2017 From: Iraq Posts: 4 Thanks: 0 How is that be? I mean how did you calculate it? Please give me a simple example and solve it. Please, I'm in a hurry, I have an exam. Last edited by skipjack; June 17th, 2017 at 12:53 PM.
 June 17th, 2017, 01:03 PM #4 Global Moderator   Joined: Dec 2006 Posts: 20,114 Thanks: 1909 There are some examples in this article.

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