y1	y2
-1.56444	-0.95089
-1.52562	-0.94663
-1.33500	-0.69315
-1.11711	-0.59222
-1.05222	-0.55962
-0.94507	-0.52117
-0.80648	-0.00995
-0.54349	0.07472
-0.01489	0.14156
0.16487	0.19601
0.46681	0.65887
1.80181	2.93746