(Free42) roundoff for complex SQRT

[Thomas Okken]

(04-10-2018 08:11 AM)Paul Dale Wrote:  If there is a fused multiply add call in Intel's decimal library, then dot products can be made accurate. It is computationally expensive to do so but it's not too difficult.

How would that work?
(I'm not saying I'll do it, but I am curious. And the Intel library does have FMA.)