The harmonic mean is the special case of the power mean and is one of the Pythagorean means. In older literature, it is sometimes called the subcontrary mean. The volume-to-surface area ratio for a cylindrical container with height and radius and the mean curvature of a general surface are related to the harmonic mean.
The name SMITH is probably the most common of all surnames. The only names that give it any competition for this title would be Jones and Johnson. The most widely accepted derivation of the name is from the Anglo-Saxon SMITAN and the Germanic verb âSmioanâ meaning to smite or strike.
Smith is a family name (surname) originating in England. It is the most prevalent surname in the United Kingdom, Australia and the United States, the second most common surname in Canada, and the fifth most common surname in Ireland.or example: 1  It is common for people in English-speaking countries to adopt the surname Smith in order to maintain a secret identity, when they wish to avoid being found. 2  Smith is an extremely common name among English Gypsies; see also John Smith.