Integrand size = 83, antiderivative size = 21 \[ \int \frac {e^2 x-x^2+\left (x^2+2 x^3+e^4 (1+2 x)+e^2 \left (-2 x-4 x^2\right )\right ) \log (x)+\left (2 e^2 x-x^2\right ) \log (x) \log (\log (x))}{\left (e^4-2 e^2 x+x^2\right ) \log (x)} \, dx=x+x^2+\frac {x^2 \log (\log (x))}{e^2-x} \]
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\[ \int \frac {e^2 x-x^2+\left (x^2+2 x^3+e^4 (1+2 x)+e^2 \left (-2 x-4 x^2\right )\right ) \log (x)+\left (2 e^2 x-x^2\right ) \log (x) \log (\log (x))}{\left (e^4-2 e^2 x+x^2\right ) \log (x)} \, dx=\int \frac {e^2 x-x^2+\left (x^2+2 x^3+e^4 (1+2 x)+e^2 \left (-2 x-4 x^2\right )\right ) \log (x)+\left (2 e^2 x-x^2\right ) \log (x) \log (\log (x))}{\left (e^4-2 e^2 x+x^2\right ) \log (x)} \, dx \]
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Rubi steps \begin{align*} \text {integral}& = \int \frac {e^2 x-x^2+\left (x^2+2 x^3+e^4 (1+2 x)+e^2 \left (-2 x-4 x^2\right )\right ) \log (x)+\left (2 e^2 x-x^2\right ) \log (x) \log (\log (x))}{\left (-e^2+x\right )^2 \log (x)} \, dx \\ & = \int \frac {\left (e^2-x\right ) x+\log (x) \left (\left (e^2-x\right )^2 (1+2 x)+\left (2 e^2-x\right ) x \log (\log (x))\right )}{\left (e^2-x\right )^2 \log (x)} \, dx \\ & = \int \left (\frac {x+e^2 \log (x)-\left (1-2 e^2\right ) x \log (x)-2 x^2 \log (x)}{\left (e^2-x\right ) \log (x)}+\frac {\left (2 e^2-x\right ) x \log (\log (x))}{\left (e^2-x\right )^2}\right ) \, dx \\ & = \int \frac {x+e^2 \log (x)-\left (1-2 e^2\right ) x \log (x)-2 x^2 \log (x)}{\left (e^2-x\right ) \log (x)} \, dx+\int \frac {\left (2 e^2-x\right ) x \log (\log (x))}{\left (e^2-x\right )^2} \, dx \\ & = \int \left (1+2 x+\frac {x}{\left (e^2-x\right ) \log (x)}\right ) \, dx+\int \left (-\log (\log (x))+\frac {e^4 \log (\log (x))}{\left (e^2-x\right )^2}\right ) \, dx \\ & = x+x^2+e^4 \int \frac {\log (\log (x))}{\left (e^2-x\right )^2} \, dx+\int \frac {x}{\left (e^2-x\right ) \log (x)} \, dx-\int \log (\log (x)) \, dx \\ & = x+x^2-x \log (\log (x))+e^4 \int \frac {\log (\log (x))}{\left (e^2-x\right )^2} \, dx+\int \frac {1}{\log (x)} \, dx+\int \frac {x}{\left (e^2-x\right ) \log (x)} \, dx \\ & = x+x^2-x \log (\log (x))+\operatorname {LogIntegral}(x)+e^4 \int \frac {\log (\log (x))}{\left (e^2-x\right )^2} \, dx+\int \frac {x}{\left (e^2-x\right ) \log (x)} \, dx \\ \end{align*}
Time = 0.26 (sec) , antiderivative size = 30, normalized size of antiderivative = 1.43 \[ \int \frac {e^2 x-x^2+\left (x^2+2 x^3+e^4 (1+2 x)+e^2 \left (-2 x-4 x^2\right )\right ) \log (x)+\left (2 e^2 x-x^2\right ) \log (x) \log (\log (x))}{\left (e^4-2 e^2 x+x^2\right ) \log (x)} \, dx=\frac {x \left (-\left (\left (e^2-x\right ) (1+x)\right )-x \log (\log (x))\right )}{-e^2+x} \]
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Time = 5.17 (sec) , antiderivative size = 38, normalized size of antiderivative = 1.81
method | result | size |
risch | \(-\frac {-x^{2} {\mathrm e}^{2}-x^{2} \ln \left (\ln \left (x \right )\right )+x^{3}-{\mathrm e}^{2} x +x^{2}}{{\mathrm e}^{2}-x}\) | \(38\) |
parallelrisch | \(\frac {x^{2} {\mathrm e}^{2}-x^{3}+x^{2} \ln \left (\ln \left (x \right )\right )+{\mathrm e}^{4}-x^{2}}{{\mathrm e}^{2}-x}\) | \(38\) |
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Time = 0.24 (sec) , antiderivative size = 33, normalized size of antiderivative = 1.57 \[ \int \frac {e^2 x-x^2+\left (x^2+2 x^3+e^4 (1+2 x)+e^2 \left (-2 x-4 x^2\right )\right ) \log (x)+\left (2 e^2 x-x^2\right ) \log (x) \log (\log (x))}{\left (e^4-2 e^2 x+x^2\right ) \log (x)} \, dx=\frac {x^{3} - x^{2} \log \left (\log \left (x\right )\right ) + x^{2} - {\left (x^{2} + x\right )} e^{2}}{x - e^{2}} \]
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Time = 0.16 (sec) , antiderivative size = 34, normalized size of antiderivative = 1.62 \[ \int \frac {e^2 x-x^2+\left (x^2+2 x^3+e^4 (1+2 x)+e^2 \left (-2 x-4 x^2\right )\right ) \log (x)+\left (2 e^2 x-x^2\right ) \log (x) \log (\log (x))}{\left (e^4-2 e^2 x+x^2\right ) \log (x)} \, dx=x^{2} + x - e^{2} \log {\left (\log {\left (x \right )} \right )} + \frac {\left (- x^{2} + x e^{2} - e^{4}\right ) \log {\left (\log {\left (x \right )} \right )}}{x - e^{2}} \]
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Time = 0.22 (sec) , antiderivative size = 35, normalized size of antiderivative = 1.67 \[ \int \frac {e^2 x-x^2+\left (x^2+2 x^3+e^4 (1+2 x)+e^2 \left (-2 x-4 x^2\right )\right ) \log (x)+\left (2 e^2 x-x^2\right ) \log (x) \log (\log (x))}{\left (e^4-2 e^2 x+x^2\right ) \log (x)} \, dx=\frac {x^{3} - x^{2} {\left (e^{2} - 1\right )} - x^{2} \log \left (\log \left (x\right )\right ) - x e^{2}}{x - e^{2}} \]
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Time = 0.28 (sec) , antiderivative size = 36, normalized size of antiderivative = 1.71 \[ \int \frac {e^2 x-x^2+\left (x^2+2 x^3+e^4 (1+2 x)+e^2 \left (-2 x-4 x^2\right )\right ) \log (x)+\left (2 e^2 x-x^2\right ) \log (x) \log (\log (x))}{\left (e^4-2 e^2 x+x^2\right ) \log (x)} \, dx=\frac {x^{3} - x^{2} e^{2} - x^{2} \log \left (\log \left (x\right )\right ) + x^{2} - x e^{2}}{x - e^{2}} \]
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Time = 13.89 (sec) , antiderivative size = 21, normalized size of antiderivative = 1.00 \[ \int \frac {e^2 x-x^2+\left (x^2+2 x^3+e^4 (1+2 x)+e^2 \left (-2 x-4 x^2\right )\right ) \log (x)+\left (2 e^2 x-x^2\right ) \log (x) \log (\log (x))}{\left (e^4-2 e^2 x+x^2\right ) \log (x)} \, dx=x+x^2-\frac {x^2\,\ln \left (\ln \left (x\right )\right )}{x-{\mathrm {e}}^2} \]
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