; spline s -b -q -s -1 1 ss10
; points along a symmetric curve
              0               1 
           0.25        0.927931 
            0.5         1.13616 
           0.75         1.52349 
              1               2 
           1.25           2.495 
            1.5         2.99383 
           1.75         3.49569 
              2               4 
           2.25         4.53563 
            2.5         5.25098 
           2.75         6.33505 
              3               8 
           3.25         10.3403 
            3.5         12.8741 
           3.75         14.9776 
              4              16 " "
              5              16 
           5.25         14.9776 
            5.5         12.8741 
           5.75         10.3403 
              6               8 
           6.25         6.33505 
            6.5         5.25098 
           6.75         4.53563 
              7               4 
           7.25         3.49569 
            7.5         2.99383 
           7.75           2.495 
              8               2 
           8.25         1.52349 
            8.5         1.13616 
           8.75        0.927931 
              9               1 
