"phi v time
0.0000000000000	0.2721470814147
0.3000000000000	0.2709316945279
0.6000000000000	0.2680935679140
0.9000000000000	0.2636332439763
1.2000000000000	0.2575501677794
1.5000000000000	0.2498446342509