What can go Wrong?
Not every function is analytic. The video below explores the different ways in which a Taylor series can fail to converge to a function $f(x)$.
- The function may not be infinitely differentiable, so the Taylor series may not even be defined.
- The derivatives of $f(x)$ at $x=a$ may grow so quickly that the Taylor series may not converge.
- The series may converge to something other than $f(x)$.
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