hex lattice, torus 1 x sqrt3, N=2: Phi_T = 0.07446575455794892  c_H = 0.07446575455794908  diff = -1.6653345369377348e-16
torus 1.000 x 1.732, N=2: best Phi_T found = 0.074466 (c_H = 0.074466)
torus 1.000 x 1.000, N=3: best Phi_T found = 0.301904 (c_H = 0.074466)
torus 1.000 x 1.000, N=4: best Phi_T found = 0.094755 (c_H = 0.074466)
torus 1.000 x 1.732, N=3: best Phi_T found = 0.241329 (c_H = 0.074466)
torus 1.000 x 1.732, N=4: best Phi_T found = 0.170389 (c_H = 0.074466)
torus test OK: min over all found (Phi_T - c_H) = 1.0212664047770659e-13
