operation - A basic process that applies to an operand and yields a transform, e.g., the multiplication of two numbers, driving a nail with a hammer, baking. A transformation describes an operation, sometimes in terms of an algorithm. (Krippendorff) ;
дс тдрлими цюлютдажкию дроемжки аиакиохдйис лидр
http://pespmc1.vub.ac.be/ASC/Operation.html;
