"phi v time
0.0000000000000	0.5254444636163
0.3000000000000	0.5198045367739
0.6000000000000	0.5081716902189
0.9000000000000	0.4898751878294
1.2000000000000	0.4667161482619
1.5000000000000	0.4404832689116
1.8000000000000	0.4133295650863
2.1000000000000	0.3873977220187
2.4000000000000	0.3641346167334
2.7000000000000	0.3440848322051
3.0000000000000	0.3267346196753