"kzz v time
0.0000000000000	0.0000000000000
0.0250000000000	-0.2166347717408
0.0500000000000	-0.4332346247264
0.0750000000000	-0.6497800123903
0.1000000000000	-0.8662766282641
0.1250000000000	-1.0827618931269
0.1500000000000	-1.2993077148697
0.1750000000000	-1.5160199771163
0.2000000000000	-1.7330360872933
0.2250000000000	-1.9505218583091
0.2500000000000	-2.1686687115050