t,x 0.0,-0.0 0.04444444,0.06703595 0.08888889,0.12598637 0.13333333,0.16974099 0.17777778,0.19302233 0.22222222,0.19302231 0.26666667,0.16974098 0.31111111,0.12598637 0.35555556,0.06703594 0.4,1e-08
