L-curve plot for the data obtained by the Monte Carlo sample for a unimodal distribution. Horizontal axis shows , i.e., the residuals of the regularization. Vertical axis shows , i.e., the norm of the regularization. Thihkonov parameter values (λ) are overplotted to the corresponding data points. Only the horizontal part of the typical “L” shape is shown. This situation occurs with very smooth exact solutions. See text for details.