The original unum proposal is in [1] which was very interesting read. This is a newer version of the format that replaces NaN with a notion of an empty set and

The original unum proposal is in [1] which was very interesting read. This is a newer version of the format that replaces NaN with a notion of an empty set and represents 1/x exactly. Rather splendid! [1] http://www.amazon.com/The-End-Error-Computing-Computational/dp/1482239868 http://www.amazon.com/The-End-Error-Computing-Computational/...