. "\"Displacement\" is the shortest distance from the initial to the final position of a point P." . "Displacement"@en . . . . . . . . . . . . . . . . . . "\\(\\Delta r = R_f - R_i\\), where \\(R_f\\) is the final position and \\(R_i\\) is the initial position."^^ . "http://www.iso.org/iso/catalogue_detail?csnumber=43012"^^ . . . . . . "\\(\\Delta r\\)"^^ . . . . . . . . "http://en.wikipedia.org/wiki/Displacement_(vector)"^^ . . . . . . . . . . .