"phi v time
0.0000000000000	0.0667033568327
0.0025000000000	0.0720129716344
0.0050000000000	0.0726242674221
0.0075000000000	0.0827937102137
0.0100000000000	0.0922856480188
0.0125000000000	0.0962253017974