Libxc validation fe
1.0
2.86000000000000 0.00000000000000 0.00000000000000
0.00000000000000 2.84000000000000 0.00000000000000
0.00000000000000 0.00000000000000 2.88000000000000
Fe
2
Direct
0.00000000000000 0.00000000000000 0.00000000000000
0.51200000000000 0.49700000000000 0.50300000000000
