.i 1
.o 1
.t 21
-1.0	0.0
-0.9	-0.03249
-0.8	-0.10368
-0.7	-0.18207
-0.6	-0.24576
-0.5	-0.28125
-0.4	-0.28224
-0.3	-0.24843
-0.2	-0.18432
-0.1	-0.09801
0.0	0.0
0.1	0.09801
0.2	0.18432
0.3	0.24843
0.4	0.28224
0.5	0.28125
0.6	0.24576
0.7	0.18207
0.8	0.10368
0.9	0.03249
1.0	0.0
.e