... = 2* t; H4 = -2* t; for i = 2 :1: n u1(i +2) =( D1*x1(i +1) + E1*x1(i) + F1*x1(i -1) + G1*x2(i +1) + H1*x2(i) + K1*x2(i -1) -B1*u1(i +1) -C1*u1(i))/A1; u2(i +2) =( D2*x1(i +1) + E2*x1(i) + G2*x1(i -1) ... E4 = -2* D4; F4 = D4 ; G4 = 2* t; H4 = -2* t; u1(i +2) = ( D1*x1(i +1) + E1*x1(i) + F1*x1(i -1) + G1*x2(i +1) + H1*x2(i) + K1*x2(i -1) -B1*u1(i +1) -C1*u1(i))/A1; u2(i +2) = ( D2*x1(i +1) + E2*x1(i) ... function[x1,x2,u1,u2]=TT(t,n) x1 (1) =0;x2 (1) =0;x1 (2) =0;x2 (2) =0;x1(3) =10 ;x2(3)=0; u1 (1) =0; u2 (1) =0; u1 (2) = 0; u2 (2) = 0;u1(3) =1; u2(3) =1; A1 = 4 + t*t + 4*t; B1 = 2* t*t - 8; C1 = 4 - 4*t + 4*t*t; D1...