Difference between generating function and Rodrigue's formula?

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SUMMARY

The discussion clarifies that generating functions and Rodrigues' formula are two distinct methods for defining Legendre polynomials. Both approaches yield the same polynomials and are effective in deriving formulas related to orthogonal polynomials within the Hilbert space L²([-1,1]). The generating function provides a way to generate the required polynomial, while Rodrigues' formula serves a similar purpose, emphasizing their equivalence in application.

PREREQUISITES
  • Understanding of Legendre polynomials
  • Familiarity with generating functions
  • Knowledge of Rodrigues' formula
  • Basic concepts of orthogonal polynomials in Hilbert spaces
NEXT STEPS
  • Explore the derivation of Legendre polynomials using generating functions
  • Study the application of Rodrigues' formula in other polynomial contexts
  • Investigate the properties of orthogonal polynomials in L² spaces
  • Learn about the applications of generating functions in combinatorial mathematics
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Mathematicians, physicists, and students studying polynomial theory, particularly those focusing on orthogonal polynomials and their applications in various fields.

sreerajt
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What is the difference between generating function and Rodrigue's formula? Some says that from generating function you can generate required polynomial (say for example from generating function of Legendre polynomial you can get Legendre polynomial.), but in that case,as far as i know, Rodrigues formula also does the same job. So?
 
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i saw this link before posting this question. but i don't think that it contain answer to my question...
 
The generating function and the Rodrigues formula are just two ways to define the Legendre polynomials. Both have their merits in deriving formulas involving this set of orthogonal polynomials on the Hilbert space \mathrm{L}^2([-1,1]). Of course both definitions give the same polynomials.
 

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