(title "Mach Number")
(labels "Position" "Mach Number")

((xy/key/label "1D")
   -0.5000    0.1682
   -0.4000    0.2297
   -0.3000    0.3242
   -0.2000    0.4708
   -0.1000    0.69
     0        1.0000
    0.1000    1.3719
    0.2000    1.7632
    0.3000    2.1389
    0.4000    2.4850
    0.5000    2.8000
)