This problem must be solved using MATLAB, without for or if function

When a simply supported beam is loaded; The shear force V and bending moment M as a function of I are given by the following equations: V(x) = 100 - 2003 (lb), for 03138ft (la) V(x) = -1200 (lb), for 8513 12 ft (1b) V(x) = -250r + 5000 (lb), for 12