Integrand size = 189, antiderivative size = 27 \[ \int \frac {18-36 x+e^{x^2} \left (-18-36 x^2\right )}{-729-243 x+216 x^2+53 x^3+e^{3 x^2} x^3-24 x^4-3 x^5+x^6+\left (-243-54 x+51 x^2+6 x^3-3 x^4\right ) \log (4)+\left (-27-3 x+3 x^2\right ) \log ^2(4)-\log ^3(4)+e^{2 x^2} \left (-27 x^2-3 x^3+3 x^4-3 x^2 \log (4)\right )+e^{x^2} \left (243 x+54 x^2-51 x^3-6 x^4+3 x^5+\left (54 x+6 x^2-6 x^3\right ) \log (4)+3 x \log ^2(4)\right )} \, dx=\frac {9}{x^2 \left (-e^{x^2}-x+\frac {9+x+\log (4)}{x}\right )^2} \]
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Time = 0.28 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.89, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.016, Rules used = {6820, 12, 6818} \[ \int \frac {18-36 x+e^{x^2} \left (-18-36 x^2\right )}{-729-243 x+216 x^2+53 x^3+e^{3 x^2} x^3-24 x^4-3 x^5+x^6+\left (-243-54 x+51 x^2+6 x^3-3 x^4\right ) \log (4)+\left (-27-3 x+3 x^2\right ) \log ^2(4)-\log ^3(4)+e^{2 x^2} \left (-27 x^2-3 x^3+3 x^4-3 x^2 \log (4)\right )+e^{x^2} \left (243 x+54 x^2-51 x^3-6 x^4+3 x^5+\left (54 x+6 x^2-6 x^3\right ) \log (4)+3 x \log ^2(4)\right )} \, dx=\frac {9}{\left (-x^2+\left (1-e^{x^2}\right ) x+9+\log (4)\right )^2} \]
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Rule 12
Rule 6818
Rule 6820
Rubi steps \begin{align*} \text {integral}& = \int \frac {18 \left (1-2 x-e^{x^2} \left (1+2 x^2\right )\right )}{\left (\left (-1+e^{x^2}\right ) x+x^2-9 \left (1+\frac {2 \log (2)}{9}\right )\right )^3} \, dx \\ & = 18 \int \frac {1-2 x-e^{x^2} \left (1+2 x^2\right )}{\left (\left (-1+e^{x^2}\right ) x+x^2-9 \left (1+\frac {2 \log (2)}{9}\right )\right )^3} \, dx \\ & = \frac {9}{\left (9+\left (1-e^{x^2}\right ) x-x^2+\log (4)\right )^2} \\ \end{align*}
Time = 0.05 (sec) , antiderivative size = 22, normalized size of antiderivative = 0.81 \[ \int \frac {18-36 x+e^{x^2} \left (-18-36 x^2\right )}{-729-243 x+216 x^2+53 x^3+e^{3 x^2} x^3-24 x^4-3 x^5+x^6+\left (-243-54 x+51 x^2+6 x^3-3 x^4\right ) \log (4)+\left (-27-3 x+3 x^2\right ) \log ^2(4)-\log ^3(4)+e^{2 x^2} \left (-27 x^2-3 x^3+3 x^4-3 x^2 \log (4)\right )+e^{x^2} \left (243 x+54 x^2-51 x^3-6 x^4+3 x^5+\left (54 x+6 x^2-6 x^3\right ) \log (4)+3 x \log ^2(4)\right )} \, dx=\frac {9}{\left (-9+\left (-1+e^{x^2}\right ) x+x^2-\log (4)\right )^2} \]
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Time = 1.04 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.89
method | result | size |
norman | \(\frac {9}{\left (-{\mathrm e}^{x^{2}} x -x^{2}+2 \ln \left (2\right )+x +9\right )^{2}}\) | \(24\) |
risch | \(\frac {9}{\left (-{\mathrm e}^{x^{2}} x -x^{2}+2 \ln \left (2\right )+x +9\right )^{2}}\) | \(24\) |
parallelrisch | \(\frac {9}{x^{4}+2 x^{3} {\mathrm e}^{x^{2}}+{\mathrm e}^{2 x^{2}} x^{2}-4 x^{2} \ln \left (2\right )-4 x \ln \left (2\right ) {\mathrm e}^{x^{2}}-2 x^{3}-2 x^{2} {\mathrm e}^{x^{2}}+4 \ln \left (2\right )^{2}+4 x \ln \left (2\right )-17 x^{2}-18 \,{\mathrm e}^{x^{2}} x +36 \ln \left (2\right )+18 x +81}\) | \(89\) |
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Leaf count of result is larger than twice the leaf count of optimal. 73 vs. \(2 (25) = 50\).
Time = 0.23 (sec) , antiderivative size = 73, normalized size of antiderivative = 2.70 \[ \int \frac {18-36 x+e^{x^2} \left (-18-36 x^2\right )}{-729-243 x+216 x^2+53 x^3+e^{3 x^2} x^3-24 x^4-3 x^5+x^6+\left (-243-54 x+51 x^2+6 x^3-3 x^4\right ) \log (4)+\left (-27-3 x+3 x^2\right ) \log ^2(4)-\log ^3(4)+e^{2 x^2} \left (-27 x^2-3 x^3+3 x^4-3 x^2 \log (4)\right )+e^{x^2} \left (243 x+54 x^2-51 x^3-6 x^4+3 x^5+\left (54 x+6 x^2-6 x^3\right ) \log (4)+3 x \log ^2(4)\right )} \, dx=\frac {9}{x^{4} - 2 \, x^{3} + x^{2} e^{\left (2 \, x^{2}\right )} - 17 \, x^{2} + 2 \, {\left (x^{3} - x^{2} - 2 \, x \log \left (2\right ) - 9 \, x\right )} e^{\left (x^{2}\right )} - 4 \, {\left (x^{2} - x - 9\right )} \log \left (2\right ) + 4 \, \log \left (2\right )^{2} + 18 \, x + 81} \]
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Leaf count of result is larger than twice the leaf count of optimal. 82 vs. \(2 (22) = 44\).
Time = 0.18 (sec) , antiderivative size = 82, normalized size of antiderivative = 3.04 \[ \int \frac {18-36 x+e^{x^2} \left (-18-36 x^2\right )}{-729-243 x+216 x^2+53 x^3+e^{3 x^2} x^3-24 x^4-3 x^5+x^6+\left (-243-54 x+51 x^2+6 x^3-3 x^4\right ) \log (4)+\left (-27-3 x+3 x^2\right ) \log ^2(4)-\log ^3(4)+e^{2 x^2} \left (-27 x^2-3 x^3+3 x^4-3 x^2 \log (4)\right )+e^{x^2} \left (243 x+54 x^2-51 x^3-6 x^4+3 x^5+\left (54 x+6 x^2-6 x^3\right ) \log (4)+3 x \log ^2(4)\right )} \, dx=\frac {9}{x^{4} - 2 x^{3} + x^{2} e^{2 x^{2}} - 17 x^{2} - 4 x^{2} \log {\left (2 \right )} + 4 x \log {\left (2 \right )} + 18 x + \left (2 x^{3} - 2 x^{2} - 18 x - 4 x \log {\left (2 \right )}\right ) e^{x^{2}} + 4 \log {\left (2 \right )}^{2} + 36 \log {\left (2 \right )} + 81} \]
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Leaf count of result is larger than twice the leaf count of optimal. 78 vs. \(2 (25) = 50\).
Time = 0.36 (sec) , antiderivative size = 78, normalized size of antiderivative = 2.89 \[ \int \frac {18-36 x+e^{x^2} \left (-18-36 x^2\right )}{-729-243 x+216 x^2+53 x^3+e^{3 x^2} x^3-24 x^4-3 x^5+x^6+\left (-243-54 x+51 x^2+6 x^3-3 x^4\right ) \log (4)+\left (-27-3 x+3 x^2\right ) \log ^2(4)-\log ^3(4)+e^{2 x^2} \left (-27 x^2-3 x^3+3 x^4-3 x^2 \log (4)\right )+e^{x^2} \left (243 x+54 x^2-51 x^3-6 x^4+3 x^5+\left (54 x+6 x^2-6 x^3\right ) \log (4)+3 x \log ^2(4)\right )} \, dx=\frac {9}{x^{4} - 2 \, x^{3} - x^{2} {\left (4 \, \log \left (2\right ) + 17\right )} + x^{2} e^{\left (2 \, x^{2}\right )} + 2 \, x {\left (2 \, \log \left (2\right ) + 9\right )} + 2 \, {\left (x^{3} - x^{2} - x {\left (2 \, \log \left (2\right ) + 9\right )}\right )} e^{\left (x^{2}\right )} + 4 \, \log \left (2\right )^{2} + 36 \, \log \left (2\right ) + 81} \]
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Leaf count of result is larger than twice the leaf count of optimal. 88 vs. \(2 (25) = 50\).
Time = 0.56 (sec) , antiderivative size = 88, normalized size of antiderivative = 3.26 \[ \int \frac {18-36 x+e^{x^2} \left (-18-36 x^2\right )}{-729-243 x+216 x^2+53 x^3+e^{3 x^2} x^3-24 x^4-3 x^5+x^6+\left (-243-54 x+51 x^2+6 x^3-3 x^4\right ) \log (4)+\left (-27-3 x+3 x^2\right ) \log ^2(4)-\log ^3(4)+e^{2 x^2} \left (-27 x^2-3 x^3+3 x^4-3 x^2 \log (4)\right )+e^{x^2} \left (243 x+54 x^2-51 x^3-6 x^4+3 x^5+\left (54 x+6 x^2-6 x^3\right ) \log (4)+3 x \log ^2(4)\right )} \, dx=\frac {9}{x^{4} + 2 \, x^{3} e^{\left (x^{2}\right )} - 2 \, x^{3} + x^{2} e^{\left (2 \, x^{2}\right )} - 2 \, x^{2} e^{\left (x^{2}\right )} - 4 \, x^{2} \log \left (2\right ) - 4 \, x e^{\left (x^{2}\right )} \log \left (2\right ) - 17 \, x^{2} - 18 \, x e^{\left (x^{2}\right )} + 4 \, x \log \left (2\right ) + 4 \, \log \left (2\right )^{2} + 18 \, x + 36 \, \log \left (2\right ) + 81} \]
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Timed out. \[ \int \frac {18-36 x+e^{x^2} \left (-18-36 x^2\right )}{-729-243 x+216 x^2+53 x^3+e^{3 x^2} x^3-24 x^4-3 x^5+x^6+\left (-243-54 x+51 x^2+6 x^3-3 x^4\right ) \log (4)+\left (-27-3 x+3 x^2\right ) \log ^2(4)-\log ^3(4)+e^{2 x^2} \left (-27 x^2-3 x^3+3 x^4-3 x^2 \log (4)\right )+e^{x^2} \left (243 x+54 x^2-51 x^3-6 x^4+3 x^5+\left (54 x+6 x^2-6 x^3\right ) \log (4)+3 x \log ^2(4)\right )} \, dx=\int \frac {36\,x+{\mathrm {e}}^{x^2}\,\left (36\,x^2+18\right )-18}{243\,x+4\,{\ln \left (2\right )}^2\,\left (-3\,x^2+3\,x+27\right )+{\mathrm {e}}^{2\,x^2}\,\left (6\,x^2\,\ln \left (2\right )+27\,x^2+3\,x^3-3\,x^4\right )+2\,\ln \left (2\right )\,\left (3\,x^4-6\,x^3-51\,x^2+54\,x+243\right )-{\mathrm {e}}^{x^2}\,\left (243\,x+2\,\ln \left (2\right )\,\left (-6\,x^3+6\,x^2+54\,x\right )+12\,x\,{\ln \left (2\right )}^2+54\,x^2-51\,x^3-6\,x^4+3\,x^5\right )+8\,{\ln \left (2\right )}^3-x^3\,{\mathrm {e}}^{3\,x^2}-216\,x^2-53\,x^3+24\,x^4+3\,x^5-x^6+729} \,d x \]
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