Group C7 n 4 Irred Operation 1 A E 2 E1 C7 3 E2 C7^2 4 E3 C7^3 Table 1 2 3 4 1 1.00000 1.00000 1.00000 1.00000 2 2.00000 1.24690 -0.44500 -1.80190 3 2.00000 -0.44500 -1.80190 1.24690 4 2.00000 -1.80190 1.24690 -0.44500