1amb_space 3 2number_field min_poly (a^2 - 5) embedding [ 2 +/- 1] 3vertices 12 4 0 2 (a + 1) 4 5 0 -2 (a + 1) 4 6 2 (a + 1) 0 4 7 2 (-a - 1) 0 4 8 (a + 1) 0 2 4 9 (a + 1) 0 -2 4 10 -2 (a + 1) 0 4 11 -2 (-a - 1) 0 4 12 (-a - 1) 0 2 4 13 0 2 (-a - 1) 4 14 0 -2 (-a - 1) 4 15 (-a - 1) 0 -2 4 16Volume 17IntegerHull