Solve Recurrence Relation: A0,A1,A2 Given

Click For Summary
SUMMARY

The discussion focuses on solving the recurrence relation An = 3An-2 - 2An-3 with initial conditions A0 = 3, A1 = 1, and A2 = 8. Participants highlight the challenge of handling the polynomial formed when the relation does not follow the standard An-1 format. A suggestion is made to identify roots of the polynomial x^3 - 3x + 2, which simplifies the problem-solving process. The conversation emphasizes the importance of recognizing patterns in polynomial equations to facilitate solutions.

PREREQUISITES
  • Understanding of recurrence relations and their properties
  • Familiarity with polynomial equations and root-finding techniques
  • Knowledge of initial conditions in mathematical sequences
  • Basic algebra skills for manipulating equations
NEXT STEPS
  • Study methods for solving non-standard recurrence relations
  • Learn about polynomial root-finding techniques, specifically for cubic equations
  • Explore the application of characteristic equations in recurrence relations
  • Investigate the use of generating functions in solving sequences
USEFUL FOR

Students studying discrete mathematics, mathematicians dealing with recurrence relations, and anyone interested in advanced algebraic techniques for solving polynomial equations.

swtlilsoni
Messages
16
Reaction score
0

Homework Statement



An=3An-2-2An-3

When
A0=3
A1=1
A2=8

I tried to solve it normally like a normal recurrence relation however since it is not A sub n-1, it turns into a polynomial where the variable is raised to the third power which I couldn't factor and the whole thing turned into a mess.
 
Physics news on Phys.org
welcome to pf!

hi swtlilsoni! welcome to pf! :smile:

you mean x3 - 3x + 2?

can't you see one obvious root, just from looking at it? :wink:
 

Similar threads

Replies
15
Views
2K
Replies
6
Views
2K
Replies
3
Views
3K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
Replies
8
Views
3K
  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K