/usr/share/doc/gnuplot/examples/gnu-valley

0 0 10
0 1 10
0 2 10

1 0 10
1 1 5
1 2 10

2 0 10
2 1 1
2 2 10

3 0 10
3 1 0
3 2 10

Generated by dwww version 1.15 on Fri May 24 09:07:54 CEST 2024.