"grr v time
0.0000000000000	0.9985470686827
0.0250000000000	0.9985867035001
0.0500000000000	0.9986993035479
0.0750000000000	0.9988675835931
0.1000000000000	0.9990675872119
0.1250000000000	0.9992742097870
0.1500000000000	0.9994662012662
0.1750000000000	0.9996293305348
0.2000000000000	0.9997572235411
0.2250000000000	0.9998502234552
0.2500000000000	0.9999131333925