"Xt2 v time
0.0000000000000	0.0000000000000
0.0250000000000	0.0009290699948
0.0500000000000	0.0036575301250
0.0750000000000	0.0080822326041
0.1000000000000	0.0140535017840
0.1250000000000	0.0215772064025
0.1500000000000	0.0304757635218
0.1750000000000	0.0405869491698
0.2000000000000	0.0517526811219
0.2250000000000	0.0638103741092
0.2500000000000	0.0765952837590