src/GeneralizedPolynomial-Uniform/Lagrange/1d.coeffs/1d.cube.order2.smooth0/coeff-I.compute.c


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fp t3,
   t2,
   t1;
      t3 = x*x;
      t2 = RATIONAL(1.0,2.0);
      t1 = t2*t3;
      coeff_I_m1 = RATIONAL(-1.0,2.0)*x+t1;
      coeff_I_0 = RATIONAL(1.0,1.0)-t3;
      coeff_I_p1 = t2*x+t1;