On 8/4/2016 11:05 PM, Fool wrote:
I understand your point of view. However, there are (probably rare) situations where one requires more control. I think that simulating double-double precision arithmetic using Veltkamp split was mentioned as a resonable example, earlier.
There are cases where doing things at higher precision results in double rounding and a less accurate result. But I am pretty sure there are far fewer of those cases compared to routine computations that get a more accurate result with more precision.
If that wasn't true, we wouldn't ever need double precision.
