; spline s3 -ix i -3     ss16
            0.7          1.5937         4.39142
            1.3         2.50543         3.18154
            1.7         3.31112         1.83125
            2.4         5.09758        0.509057
            3.8          14.674        0.510528
            4.8         16.8806        0.492671
            5.2          14.674        0.510528
            7.3         3.31112         1.83125
            8.2         1.71834         4.30839 ""
