QuadG2Gradient.h

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basisGradient[0] =
  0.69444444444444431 * ss * (2 * rr - 0.7745966692414834) * (ss - 0.7745966692414834);
basisGradient[1] =
  0.69444444444444431 * rr * (rr - 0.7745966692414834) * (2 * ss - 0.7745966692414834);
basisGradient[2] = 0;
basisGradient[3] = rr * ss * (2.1516574145596756 - 2.7777777777777772 * ss);
basisGradient[4] = 1.0758287072798378 * (0.7745966692414834 - 2 * ss) * (rr - 0.7745966692414834) *
  (1.2909944487358056 * rr + 1.0);
basisGradient[5] = 0;
basisGradient[6] = ss * (1.3888888888888886 * rr + 0.53791435363991891) * (ss - 0.7745966692414834);
basisGradient[7] =
  1.0758287072798378 * rr * (0.6454972243679028 * rr + 0.5) * (2 * ss - 0.7745966692414834);
basisGradient[8] = 0;
basisGradient[9] = 1.0758287072798378 * (0.7745966692414834 - 2 * rr) * (ss - 0.7745966692414834) *
  (1.2909944487358056 * ss + 1.0);
basisGradient[10] = rr * ss * (2.1516574145596756 - 2.7777777777777772 * rr);
basisGradient[11] = 0;
basisGradient[12] = (4.3033148291193513 * rr + 2.2204460492503131e-16) * (ss - 0.7745966692414834) *
  (1.2909944487358056 * ss + 1.0);
basisGradient[13] = (rr - 0.7745966692414834) * (1.2909944487358056 * rr + 1.0) *
  (4.3033148291193513 * ss + 2.2204460492503131e-16);
basisGradient[14] = 0;
basisGradient[15] = (-2.1516574145596756 * rr - 0.83333333333333326) * (ss - 0.7745966692414834) *
  (1.2909944487358056 * ss + 1.0);
basisGradient[16] =
  rr * (0.6454972243679028 * rr + 0.5) * (-4.3033148291193513 * ss - 2.2204460492503131e-16);
basisGradient[17] = 0;
basisGradient[18] =
  1.0758287072798378 * ss * (2 * rr - 0.7745966692414834) * (0.6454972243679028 * ss + 0.5);
basisGradient[19] =
  rr * (rr - 0.7745966692414834) * (1.3888888888888886 * ss + 0.53791435363991891);
basisGradient[20] = 0;
basisGradient[21] =
  ss * (-4.3033148291193513 * rr - 2.2204460492503131e-16) * (0.6454972243679028 * ss + 0.5);
basisGradient[22] = (rr - 0.7745966692414834) * (1.2909944487358056 * rr + 1.0) *
  (-2.1516574145596756 * ss - 0.83333333333333326);
basisGradient[23] = 0;
basisGradient[24] =
  ss * (2.1516574145596756 * rr + 0.83333333333333326) * (0.6454972243679028 * ss + 0.5);
basisGradient[25] =
  rr * (0.6454972243679028 * rr + 0.5) * (2.1516574145596756 * ss + 0.83333333333333326);
basisGradient[26] = 0;