Week 2-C Power Series

Friday, May 17, 2013

2:13 PM

- Fn = Fibonacci number

Formal Power Series

A formal power series is a power series where we don't care about convergence.

Notation

Formal power series can be added and multiplied in the obvious way.

Equivalently,

Equivalently,

Example

Let

Example

For

Multiplicative inverse

Example

Note

Note

Note

Example

We want

These are the Fibonacci numbers

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