fp t11;
fp t9;
fp t12;
fp t10;
      t11 = y*z;
      t9 = -t11+z;
      t12 = y+t9;
      t10 = -t11+y;
      coeffs_dx->coeff_0_0_0 = RATIONAL(-1.0,1.0)+t12;
      coeffs_dx->coeff_p1_0_0 = RATIONAL(1.0,1.0)-t12;
      coeffs_dx->coeff_0_p1_0 = -t10;
      coeffs_dx->coeff_p1_p1_0 = t10;
      coeffs_dx->coeff_0_0_p1 = -t9;
      coeffs_dx->coeff_p1_0_p1 = t9;
      coeffs_dx->coeff_0_p1_p1 = -t11;
      coeffs_dx->coeff_p1_p1_p1 = t11;