Continued Fractions
=========
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`continued-fractions` is a Haskell library for manipulating and evaluating continued
fractions.
To use this library, the following information is relevant:
* The `CF` datatype is defined thusly:
```haskell
data CF a = CF a [a]
| GCF a [(a,a)]
```
where the `CF` constructor is used to represent continued fractions whose numerators
are all `1`, and `GCF` represents generalized continued fractions. These constructors
are not exported.
* The `cf :: a -> [a] -> CF a` function is used to create continued fractions.
* The `gcf :: a -> [(a,a)] -> CF a` function is used to create generalized continued
fractions.