Pekeris waveguide. Trunc.
N T I J
20 0
3
0 0 0 0 0 0 0
0 1500 0 0 0 1 0
100 1800 0 0 0 1.8 0 
36
36 36 1 1
750 1E8
2048 1 2048
0 15 20 5
20 80 12 10
0 100 12 20
40 70 6