Hi Mahmoud, I believe the "output U" does depend on the "input U" - but only to a small degree. You can study it by performing a loop updating U_in and checking the value of U_out:
#i U_in U_out 1 1D-10 7.5154 2 7.5154 7.3759 3 7.3759 7.2442 4 7.2442 7.3925 5 7.3925 7.3820 HTH! Chris -- IBS Center for Quantum Nanoscience Seoul, South Korea
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