Formal power series

In mathematics, formal power series are devices that make it possible to employ much of the analytical machinery of power series in settings that do not have natural notions of "convergence". They are also useful, especially in combinatorics, for providing compact representations of sequences and for finding closed formulas for recursively defined sequences; this is known as the method of generating functions.

Related Topics:
Mathematics - Analytical - Power series - Convergence - Combinatorics - Sequence - Recursively - Generating function

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