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.
Best Answer: Last name is father's family name. John David Smith: Smith is Father's name. Father was, say Charles Smith. In business relationships, he would be called Mr. Smith. His wife would call him Charles. First name is given name, what your Mother or sister may call you (NOT a nickname, tho).eport Abuse. Last name is your family name. First name is the one that you answer to. Nagaraj would be your FIRST name and Chellappan would be your LAST. A middle name is just a second first name.