complex intervals
Hi,
[sorry if this has already been discussed, I do not have the time to
completely read all the messages and documents on this list]
does P1788 plan to say something about "intervals" of complex values, or only
address real intervals?
At least two possible representations exist to enclose complex sets: either a
rectangle represented by a pair of complex floating-points for the bottom-left
and upper-right corners, or a "mid-rad" representation with a complex center
and a real radius.
In dimension n the "inf-sup" representation needs 2n f-p values
whereas the "mid-rad" representation needs only n+1 values (where the "+1" can
have lower precision for tiny intervals).
Paul Zimmermann