"phi v time
0.0000000000000	0.4170518542721
0.0025000000000	0.4220007763086
0.0050000000000	0.4270109460929
0.0075000000000	0.4330104405954
0.0100000000000	0.4404513710842
0.0125000000000	0.4496435764352