let,s suppose we have a function f so the limit when [tex]\epsilon\rightarrow{0}[/tex] is infinite..now i would like to know how could i make an expansion of the function f near the singularity x=0 so we have..(adsbygoogle = window.adsbygoogle || []).push({});

[tex]f(x)=\frac{a0(x)}{(x-\epsilon)}+\frac{a1(x)}{(x-\epsilon)^{2}...[/tex]

i say a series that is valid near the point x=0+e

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# Expansion near singularities

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