Question

can anyone explain to me what a radius of convergence is? (in Series)

Answer 1

do you have an example?

Answer 2

nope, just want to understand the concept

Answer 3

an infinite series can be thought of as a polynomial that matches a given function perfectly for within a stated interval

Answer 4

the radius of that interval is half its length

Answer 5

it is the values of \(x\) for which
\[\sum a_n x^n\] is a number