Empty graph.
[ 0-by-3 ]
Singleton graph in a box.
A few tests with a disconnected graph of 10 vertices with loops in a box from -1 to 1.
Without weights, grid or bounds.
With weights.
With weights and high temperature.
With weights and high temperature and seed.
Full graph of 5 vertices, seed and no iterations:
[      0.1      0.2      0.3
       0.4      0.5      0.6
       0.7      0.8      0.9
         1     -0.1     -0.2
      -0.3     -0.4     -0.5 ]
