"kxy v time
0.0000000000000	0.0000000000000
0.0250000000000	-0.1600029874049
0.0500000000000	-0.3199732825788
0.0750000000000	-0.4798868191505
0.1000000000000	-0.6397339456743
0.1250000000000	-0.7995234672125
0.1500000000000	-0.9592848216304
0.1750000000000	-1.1190684581742
0.2000000000000	-1.2789450200514
0.2250000000000	-1.4390038942693
0.2500000000000	-1.5993515848556