Display-unit conversion for number leaves whose stored value uses a canonical unit the user shouldn't see (e.g. radians stored, degrees shown). The stored value stays canonical; UIs convert at the edge.
Optional
Shown after the input, e.g. '°'.
'°'
Display-unit conversion for number leaves whose stored value uses a canonical unit the user shouldn't see (e.g. radians stored, degrees shown). The stored value stays canonical; UIs convert at the edge.