Integrand size = 76, antiderivative size = 24 \[ \int \frac {e^{\frac {2 x-6 x^2+(-2+3 x) \log (x)}{-2 x^2+x \log (x)}} \left (2 x+4 x^2-8 x \log (x)+2 \log ^2(x)\right )}{4 x^4-4 x^3 \log (x)+x^2 \log ^2(x)} \, dx=e^{2+\frac {-1+x+\frac {\log (x)}{2 x-\log (x)}}{x}} \]
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\[ \int \frac {e^{\frac {2 x-6 x^2+(-2+3 x) \log (x)}{-2 x^2+x \log (x)}} \left (2 x+4 x^2-8 x \log (x)+2 \log ^2(x)\right )}{4 x^4-4 x^3 \log (x)+x^2 \log ^2(x)} \, dx=\int \frac {\exp \left (\frac {2 x-6 x^2+(-2+3 x) \log (x)}{-2 x^2+x \log (x)}\right ) \left (2 x+4 x^2-8 x \log (x)+2 \log ^2(x)\right )}{4 x^4-4 x^3 \log (x)+x^2 \log ^2(x)} \, dx \]
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Rubi steps \begin{align*} \text {integral}& = \int \frac {2 \exp \left (\frac {2 x-6 x^2+(-2+3 x) \log (x)}{-2 x^2+x \log (x)}\right ) \left (x+2 x^2-4 x \log (x)+\log ^2(x)\right )}{x^2 (2 x-\log (x))^2} \, dx \\ & = 2 \int \frac {\exp \left (\frac {2 x-6 x^2+(-2+3 x) \log (x)}{-2 x^2+x \log (x)}\right ) \left (x+2 x^2-4 x \log (x)+\log ^2(x)\right )}{x^2 (2 x-\log (x))^2} \, dx \\ & = 2 \int \left (\frac {\exp \left (\frac {2 x-6 x^2+(-2+3 x) \log (x)}{-2 x^2+x \log (x)}\right )}{x^2}+\frac {\exp \left (\frac {2 x-6 x^2+(-2+3 x) \log (x)}{-2 x^2+x \log (x)}\right ) (1-2 x)}{x (2 x-\log (x))^2}\right ) \, dx \\ & = 2 \int \frac {\exp \left (\frac {2 x-6 x^2+(-2+3 x) \log (x)}{-2 x^2+x \log (x)}\right )}{x^2} \, dx+2 \int \frac {\exp \left (\frac {2 x-6 x^2+(-2+3 x) \log (x)}{-2 x^2+x \log (x)}\right ) (1-2 x)}{x (2 x-\log (x))^2} \, dx \\ & = 2 \int \frac {\exp \left (\frac {2 x-6 x^2+(-2+3 x) \log (x)}{-2 x^2+x \log (x)}\right )}{x^2} \, dx+2 \int \left (-\frac {2 \exp \left (\frac {2 x-6 x^2+(-2+3 x) \log (x)}{-2 x^2+x \log (x)}\right )}{(2 x-\log (x))^2}+\frac {\exp \left (\frac {2 x-6 x^2+(-2+3 x) \log (x)}{-2 x^2+x \log (x)}\right )}{x (2 x-\log (x))^2}\right ) \, dx \\ & = 2 \int \frac {\exp \left (\frac {2 x-6 x^2+(-2+3 x) \log (x)}{-2 x^2+x \log (x)}\right )}{x^2} \, dx+2 \int \frac {\exp \left (\frac {2 x-6 x^2+(-2+3 x) \log (x)}{-2 x^2+x \log (x)}\right )}{x (2 x-\log (x))^2} \, dx-4 \int \frac {\exp \left (\frac {2 x-6 x^2+(-2+3 x) \log (x)}{-2 x^2+x \log (x)}\right )}{(2 x-\log (x))^2} \, dx \\ \end{align*}
Time = 3.61 (sec) , antiderivative size = 19, normalized size of antiderivative = 0.79 \[ \int \frac {e^{\frac {2 x-6 x^2+(-2+3 x) \log (x)}{-2 x^2+x \log (x)}} \left (2 x+4 x^2-8 x \log (x)+2 \log ^2(x)\right )}{4 x^4-4 x^3 \log (x)+x^2 \log ^2(x)} \, dx=e^{3-\frac {2}{x}-\frac {2}{-2 x+\log (x)}} \]
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Time = 0.20 (sec) , antiderivative size = 31, normalized size of antiderivative = 1.29
method | result | size |
parallelrisch | \({\mathrm e}^{\frac {\left (-2+3 x \right ) \ln \left (x \right )-6 x^{2}+2 x}{x \left (\ln \left (x \right )-2 x \right )}}\) | \(31\) |
risch | \({\mathrm e}^{\frac {3 x \ln \left (x \right )-6 x^{2}-2 \ln \left (x \right )+2 x}{x \left (\ln \left (x \right )-2 x \right )}}\) | \(32\) |
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Time = 0.25 (sec) , antiderivative size = 33, normalized size of antiderivative = 1.38 \[ \int \frac {e^{\frac {2 x-6 x^2+(-2+3 x) \log (x)}{-2 x^2+x \log (x)}} \left (2 x+4 x^2-8 x \log (x)+2 \log ^2(x)\right )}{4 x^4-4 x^3 \log (x)+x^2 \log ^2(x)} \, dx=e^{\left (\frac {6 \, x^{2} - {\left (3 \, x - 2\right )} \log \left (x\right ) - 2 \, x}{2 \, x^{2} - x \log \left (x\right )}\right )} \]
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Time = 0.17 (sec) , antiderivative size = 27, normalized size of antiderivative = 1.12 \[ \int \frac {e^{\frac {2 x-6 x^2+(-2+3 x) \log (x)}{-2 x^2+x \log (x)}} \left (2 x+4 x^2-8 x \log (x)+2 \log ^2(x)\right )}{4 x^4-4 x^3 \log (x)+x^2 \log ^2(x)} \, dx=e^{\frac {- 6 x^{2} + 2 x + \left (3 x - 2\right ) \log {\left (x \right )}}{- 2 x^{2} + x \log {\left (x \right )}}} \]
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Time = 0.32 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.83 \[ \int \frac {e^{\frac {2 x-6 x^2+(-2+3 x) \log (x)}{-2 x^2+x \log (x)}} \left (2 x+4 x^2-8 x \log (x)+2 \log ^2(x)\right )}{4 x^4-4 x^3 \log (x)+x^2 \log ^2(x)} \, dx=e^{\left (\frac {2}{2 \, x - \log \left (x\right )} - \frac {2}{x} + 3\right )} \]
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Leaf count of result is larger than twice the leaf count of optimal. 71 vs. \(2 (23) = 46\).
Time = 0.32 (sec) , antiderivative size = 71, normalized size of antiderivative = 2.96 \[ \int \frac {e^{\frac {2 x-6 x^2+(-2+3 x) \log (x)}{-2 x^2+x \log (x)}} \left (2 x+4 x^2-8 x \log (x)+2 \log ^2(x)\right )}{4 x^4-4 x^3 \log (x)+x^2 \log ^2(x)} \, dx=e^{\left (\frac {6 \, x^{2}}{2 \, x^{2} - x \log \left (x\right )} - \frac {3 \, x \log \left (x\right )}{2 \, x^{2} - x \log \left (x\right )} - \frac {2 \, x}{2 \, x^{2} - x \log \left (x\right )} + \frac {2 \, \log \left (x\right )}{2 \, x^{2} - x \log \left (x\right )}\right )} \]
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Time = 13.96 (sec) , antiderivative size = 55, normalized size of antiderivative = 2.29 \[ \int \frac {e^{\frac {2 x-6 x^2+(-2+3 x) \log (x)}{-2 x^2+x \log (x)}} \left (2 x+4 x^2-8 x \log (x)+2 \log ^2(x)\right )}{4 x^4-4 x^3 \log (x)+x^2 \log ^2(x)} \, dx=x^{\frac {3\,x-2}{x\,\ln \left (x\right )-2\,x^2}}\,{\mathrm {e}}^{-\frac {6\,x^2}{x\,\ln \left (x\right )-2\,x^2}}\,{\mathrm {e}}^{\frac {2\,x}{x\,\ln \left (x\right )-2\,x^2}} \]
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