In the method of joint, the equilibrium of isolated joints is considered to calculate internal forces in members. On the other hand, in the method of the section, the truss is divided into 2 parts by an imaginary section, and the equilibrium of either part is considered to calculate the unknown internal forces in the members. Computations are very convenient in the case of the method of joints but can become cumbersome if forces in only some members are required, and the truss is large. When internal forces in only some members are required, then analysis by the method of the section is a better choice.