cf
DomainAncillary.
isdomainancillary
True, denoting that the variable is a domain ancillary object.
New in version 2.0.
See also
isauxiliary, isdimension, isfieldancillary, ismeasure
isauxiliary
isdimension
isfieldancillary
ismeasure
>>> f.isdomainancillary True
cf.DomainAncillary.isdimension
cf.DomainAncillary.isfieldancillary