Nick's question at Yahoo Answers (Maclaurin series)

In summary, a Maclaurin series is a type of power series expansion that represents a function as an infinite sum of simpler terms, named after mathematician Colin Maclaurin. It is derived by simplifying the Taylor series around x=0, and is used to approximate functions in situations where direct calculation is difficult. The accuracy of a Maclaurin series depends on the number of terms included, and it has various real-world applications in fields like physics, engineering, and computer science.
  • #1
Fernando Revilla
Gold Member
MHB
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Here is the question:

for f(x)= (x)/(1-x^4)

= summation from 0 to infinity:

Here is a link to the question:

Find the Maclaurin series? - Yahoo! Answers

I have posted a link there to this topic so the OP can find my response.
 
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  • #2
Hello nick,

If $|t|<1$ we know that $\dfrac{1}{1-t}=\displaystyle\sum_{n=0}^{\infty}t^n$. Then, using the Algebra of series: $$f(x)=x\cdot\dfrac{1}{1-x^4}=x\sum_{n=0}^{\infty}(x^4)^n=\sum_{n=0}^{ \infty}x^{4n+1}\quad (|x|<1)$$ So, necessarily the Maclaurin series for $f(x)$ is $\displaystyle\sum_{n=0}^{\infty}x^{4n+1}.$
 

Related to Nick's question at Yahoo Answers (Maclaurin series)

1. What is a Maclaurin series?

A Maclaurin series is a special type of power series expansion that is used to represent a function as an infinite sum of simpler terms. It is named after Scottish mathematician Colin Maclaurin.

2. How is a Maclaurin series derived?

A Maclaurin series is derived by taking the Taylor series of a function around x=0, and simplifying it by setting the center of the series at x=0. This results in a simpler form of the Taylor series, known as the Maclaurin series.

3. What is the purpose of using a Maclaurin series?

The purpose of using a Maclaurin series is to approximate a function using a simpler series of terms. This can be useful in situations where it is difficult or impossible to directly calculate the value of a function, but the Maclaurin series can provide a good approximation.

4. How accurate is a Maclaurin series?

The accuracy of a Maclaurin series depends on how many terms are included in the series. The more terms that are included, the more accurate the approximation will be. However, even with an infinite number of terms, a Maclaurin series will only be an approximation and may not be exact.

5. What are some real-world applications of Maclaurin series?

Maclaurin series have many applications in physics, engineering, and other fields. They can be used to approximate functions in mathematical models, such as in the study of fluid dynamics or electrical circuits. They are also used in numerical analysis and computer science to solve complex problems and simulate real-world scenarios.

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