Hi, By having formatted dlarray enforces the order of labels 'SCBTU'. This enforcement eliminates ambiguous semantics in operations, which implicitly match labels between inputs. dlarray also enforces that the labels 'C', 'B', and 'T' can each appear at most once. The functions that use these labels accept at most one dimension for each label.
Here in your case the value of the results are same, but their format is different as formatted dlarray enforce the format constraints, where as unformatted dlarray does not enforce any constraints
Hope this helps!