Before revision: Simply put example: a cantilever refers to an object unsupported on one side, but supported by the middle as well as the other side The cantilever method is an approximate method for calculating shear forces and moments developed in beams and columns of a frame or structure due to lateral loads.
After revision: The cantilever method is an approximate method for calculating shear forces and moments developed in beams and columns of a frame or structure due to lateral loads.