Also useful for expressing calculation as it is ongoing. For example, when
adding 0.8688 and 0.2811, a common algorithm is to add the digits from
least-significant (here: rightmost) to most-significant (here: leftmost).
As one goes, one can utter the results: 9, 9, 4 (carry the 1), 1, point,
1. But this number would be backward – unless the endianness were toggled
in advance.