I have a preference for "optional" because I suspect in most cases 32-bit will
be sufficient and this would relieve data writers from including this
attribute. There may be good reasons for making it mandatory; what are they?
Not sure about this, but I think "should" rather than "shall" is
Hi @taylor13 and @davidhassell,
Regarding the `computational_precision` attribute, it appears that we currently
have two proposals: Either an optional attribute with a default value or a
mandatory attribute.
I have written two versions of the new section 8.3.8, one for each of the two
