"phi v time
0.0000000000000	0.4628645870911
0.0025000000000	0.4669828207638
0.0050000000000	0.4725978463127
0.0075000000000	0.4809133180285
0.0100000000000	0.4927989620596
0.0125000000000	0.5089717299563