Math 2.0

concept

Formal power series

Summary

A formal power series is an infinite sum ∑anXn\sum a_n X^n treated as an algebraic object, without any convergence condition. Formal power series form a ring that is the natural home of generating functions. The node formal power series gives the precise definition.

What this node needs for W2
  • edge instance_of in: at least two examples (1 of 2)
  • edge not_instance_of in: at least one non-example (0 of 1)
  • edge specializes both: the more general notions and the special cases (0 of 1)

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1 node uses this node, directly or through other nodes.

Sources

  1. Web https://en.wikipedia.org/wiki/Formal_power_series, Definition of the formal power series ring

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