from sympy import Matrix, Rational, sqrt d = 3 q = 19 c = [ Matrix(x) for x in [ ( 0, 1, 1), (-1, 0, 1), ( 0, 0, 1), ( 1, 0, 1), ( 0, -1, 1), (-1, 1, 0), ( 0, 1, 0), ( 1, 1, 0), (-1, 0, 0), ( 0, 0, 0), ( 1, 0, 0), (-1,-1, 0), ( 0, -1, 0), ( 1, -1, 0), ( 0, 1,-1), (-1, 0,-1), ( 0, 0,-1), ( 1, 0,-1), ( 0, -1,-1) ]] w = [Rational(*x) for x in [ (1,36), (1,36), (1,18), (1,36), (1,36), (1,36), (1,18), (1,36), (1,18), (1,3), (1,18), (1,36), (1,18), (1,36), (1,36), (1,36), (1,18), (1,36), (1,36) ]] c_s = sqrt(Rational(1,3))