g1 : group = { &
qm1[k1]:1.227e-05+b*-3.068e+00+a*-5.748e+00+b^2*-6.860e+00+a*b*-3.125e+00+ &
 a^2*-4.494e+01+a*b^2*8.563e+01+b*a^2*5.955e+01+b^3*-2.423e+01+a^3*1.343e+02, &
qm2[k1]:-4.915e-07+b*3.318e-01+a*2.639e+00+b^2*1.367e+01+a*b*-1.982e+00+ &
 a^2*-1.315e+01+a*b^2*1.439e+01+b*a^2*-3.236e+00+b^3*5.715e+00+a^3*3.398e+00, &
qm3[k1]:-4.122e-06+b*7.569e-01+a*2.690e+00+b^2*-6.117e+01+a*b*7.609e+00+ &
 a^2*6.362e+01+a*b^2*-1.257e+02+b*a^2*-2.765e+01+b^3*-6.334e+00+a^3*-8.654e+01, &
g_vbm_k1[k1]:-2.511e-01+b*-1.454e+00+a*3.394e+00+b^2*2.299e+01+a*b*5.667e+00+ &
 a^2*3.754e+01+a*b^2*-5.040e+01+b*a^2*-5.976e+00+b^3*-1.395e+01+a^3*-5.619e+01}, var = {a,b}