Math 2.0

Commutative algebra Concept

Coefficient of a power series

Summary

The coefficient of XnX^n in a formal power series is the nn-th term of its sequence. Coefficient extraction is how a generating function gives back its counting numbers. The node coefficient of a power series gives the precise definition.

Where this leads

2 pages build on this one.

Further reading

  1. Web https://en.wikipedia.org/wiki/Formal_power_series, Extracting coefficients
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