### Definition

A formal power series is an infinite sequence of numbers, which can be
manipulated as the coefficients of a power series (a polynomial with an infinite
number of terms) without regard to convergence.

### Infinite Base Numbers

. . . . . .

### Arbitrary Base Numbers

### Product of Formal Power Series

### Inverse (Reciprocal) of a Formal Power Series

### Convolution

### Counting Ways to Make Change

### Counting Scores of a Football Game

### Internet references

Wikipedia: Formal
Power Series

### Related pages in this website

Generating Function

Recurrence Relation

Polynomial

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