RUNNING THE L-BFGS-B CODE it = iteration number nf = number of function evaluations nseg = number of segments explored during the Cauchy search nact = number of active bounds at the generalized Cauchy point sub = manner in which the subspace minimization terminated: con = converged, bnd = a bound was reached itls = number of iterations performed in the line search stepl = step length used tstep = norm of the displacement (total step) projg = norm of the projected gradient f = function value * * * Machine precision = 2.220D-16 N = 6693552 M = 5 it nf nseg nact sub itls stepl tstep projg f