compute the Hamming distance between two strings
HammingDistance( s, t )
The HammingDistance(s,t) command returns an integer measure of the distance between the two strings s and t.
The Hamming distance between two strings s and t, of equal length, is the number of character positions where they differ. If strings s and t have respective lengths m and n where, without loss of generality, n<m, then the generalized Hamming distance between s and t is defined to be (m - n) + HammingDistance( s[ 1 .. n ], t ). The HammingDistance procedure computes this generalized metric.
For a different notion of the distance between two strings, see StringTools[Levenshtein].
Since it is a metric, the Hamming distance satisfies the triangle inequality.
s ≔ Random⁡1000,'lower':
t ≔ Random⁡1000,'lower':
u ≔ Random⁡1000,'lower':
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