Initialize α = [α(1), α(2)], convergence threshold ε, maximum number of iteration N.

Set j = 1. Set mean square error D0 and difference between iterations d to be sufficiently large.

while d >ε and j<N

v1 = v̄+ α(1)m1, v2 = v̄+ α(2)m1, T1 = B(v1) and, T2 = B(v2)

If D(T1(A), M) > D(T2(A), M)

α =[(α(1) + α(2))/2, α(2)]

else

α =[α(1), (α(1) + α(2))/2]

end

d = D0 – min (D(T1(A), M), D(T2(A), M))

D0 = min (D(T1(A), M), D(T2(A), M))

j = j + 1

end

if D(T1(A), M) > D(T2(A), M)

output α(2)

else

output α(1)

end