We can see the canonical directions of a particular adjustment by using the cd+ option of the SHOW: command:
BD>show: cd+ 
giving the output shown in figure 14.
This shows two canonical directions, roughly
and 
,
defined as linear combinations of the quantities of interest. These
directions (which were discussed further in section 4.4) have
prior covariance zero and prior variance unity, and are output together
with their canonical resolutions, 
and
.
