Problem with a taylor serie expansion

In summary, a Taylor series expansion is a representation of a function as an infinite sum of terms, used to approximate a function or find its value at a difficult point. It is commonly used in mathematics, physics, and engineering. However, there are some problems with using a Taylor series, such as its reliance on the number of terms and its convergence for certain functions. To improve accuracy, one can use more terms or higher-order approximations, or use numerical methods to determine and adjust for error. There are also alternative methods for approximating a function, such as polynomial interpolation, Fourier series, and numerical integration. The choice of method depends on the specific function and desired level of accuracy.
  • #1
Amaelle
310
54
Homework Statement
Look at the image
Relevant Equations
Tayolr development
Greetings
https://www.physicsforums.com/attachments/295843

I really don´t agree with the solution
https://www.physicsforums.com/attachments/295846

as I calculated fxy I got
fxy=xyexy
f(0,1)=0 so x(y-1) should not appear in the solution
am I wrong?

thank you!
 
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  • #2
I can't see the attachments.
 
  • Like
Likes Amaelle
  • #3
thank you I solved the problem it was my wrong calculation!
 

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