Function Relations: Seeking Expert Opinion & Resources

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Discussion Overview

The discussion revolves around the correctness of a mathematical expression involving function relations, specifically addressing the use of certain functions and the representation of series. Participants are exploring the implications of these expressions within the context of Taylor series and their properties.

Discussion Character

  • Debate/contested

Main Points Raised

  • One participant suggests that the expression f^i(x) should be replaced with g^i(x), proposing that g^i(x) could be either the Gamma or Beta function, and questions the use of infinity in the context of the series.
  • Another participant asserts that the expression in question is indeed the Maclaurin series for any infinitely differentiable function, challenging the initial claim.
  • A later reply seeks recommendations for literature on the Taylor series, indicating a desire for further understanding.
  • Another participant mentions that introductory calculus texts typically cover the Taylor series, including its derivation and convergence criteria.

Areas of Agreement / Disagreement

Participants express disagreement regarding the correctness of the initial mathematical expression, with some asserting it is a Maclaurin series while others propose alternative interpretations. The discussion remains unresolved with competing views present.

Contextual Notes

There are indications of missing assumptions regarding the definitions of the functions involved and the conditions under which the series is applied. The discussion does not clarify the mathematical steps leading to the claims made.

beta23
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I'm very sure this is wrong. I think the f^i(x) should be changed to a g^i(x) where g^i(x) is some function (I'm guessing either Gamma or Beta) and that the infinity sign should be changed to a i-->k where k is some arbitrary value. Reason being f^i(x) will always equal zero and j/i! will also always tend to zero.

Besides that I have absolutely nothing to say about this so I was hoping for some expert opinion and perhaps if you could recommend any reading I could do to better my understanding on the subject.

Thank you!
 

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beta23 said:
I'm very sure this is wrong.

No, you are wrong here. This is nothing but the Maclaurin series (i.e., Taylor series around ##x = 0##) for any infinitely differentiable function.
 
Orodruin said:
No, you are wrong here. This is nothing but the Maclaurin series (i.e., Taylor series around ##x = 0##) for any infinitely differentiable function.

Thanks a lot Orodruin. Is there any books you can recommend for the Taylor Series?
 
beta23 said:
Thanks a lot Orodruin. Is there any books you can recommend for the Taylor Series?
So far as I know, every first introduction to calculus has this (including derivation, convergence criteria, etc.)
 

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