numhask-range-0.0.4: readme.md

[numhask-range](https://github.com/tonyday567/numhask-range)
===

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A `Range` a is a tuple representing an interval of a number space.  A Range can be thought of as consisting of a low and high value, though `low <= high` isn't strictly enforced, allowing a negative space so to speak. The library uses the 'NumHask' classes and thus most of the usual arithmetic operators can be used.

The library includes modules for:

- `Rect`: rectangles, which are 2 dimensional ranges.  This is very useful for diagrams
- `Hist`: histograms.  This may sound strange but buckets of a histogram is nothing more than a collection of contiguous `Ranges` with extra information for each bucket.