octave:1> load spantw_18bis32s.txt octave:2> load spantw_ersatz2_18bis32s.txt octave:3> diff = [spantw_18bis32s * [1, 0]', spantw_18bis32s * [0, 1]' .- spantw_ersatz2_18bis32s * [0, 1]'] octave:4> max(diff * [0, 1]') ans = 0.011809 octave:5> mean(diff * [0, 1]') ans = 0.0017045 octave:6> save spantw_ersatz2_18bis32s_diff.txt diff