Anonymous user
Talk:Formal power series: Difference between revisions
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→Multiplication and division: Typo error
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<math>\frac{1}{x}</math>
</blockquote>
:It just does not have Taylor series in ''x''<sub>0</sub>=0. As for the method you refer to. It is based on solving a linear equations system. The system for 1/''x'' does not have a solution (''
<blockquote>
<math>\frac{1}{1-x}=\sum_{n=0}^\infty x^n</math> (sum of a geometric progression |x|<1)
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