Integrand size = 120, antiderivative size = 26 \[ \int \frac {4 x^2+e^{\frac {-4+x-x^2}{x}} \left (-16+4 x^2\right )+\left (e^{\frac {-4+x-x^2}{x}} x^2-x^3\right ) \log \left (e^{\frac {-4+x-x^2}{x}}-x\right )}{\left (e^{\frac {-4+x-x^2}{x}} x^2-x^3\right ) \log \left (e^{\frac {-4+x-x^2}{x}}-x\right )} \, dx=x-\log \left (\log ^4\left (e^{\frac {-4+x-x^2}{x}}-x\right )\right ) \]
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Time = 0.51 (sec) , antiderivative size = 22, normalized size of antiderivative = 0.85, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.017, Rules used = {6820, 6816} \[ \int \frac {4 x^2+e^{\frac {-4+x-x^2}{x}} \left (-16+4 x^2\right )+\left (e^{\frac {-4+x-x^2}{x}} x^2-x^3\right ) \log \left (e^{\frac {-4+x-x^2}{x}}-x\right )}{\left (e^{\frac {-4+x-x^2}{x}} x^2-x^3\right ) \log \left (e^{\frac {-4+x-x^2}{x}}-x\right )} \, dx=x-4 \log \left (\log \left (e^{-x-\frac {4}{x}+1}-x\right )\right ) \]
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Rule 6816
Rule 6820
Rubi steps \begin{align*} \text {integral}& = \int \left (1-\frac {4 \left (e^{\frac {4}{x}+x} x^2+e \left (-4+x^2\right )\right )}{x^2 \left (-e+e^{\frac {4}{x}+x} x\right ) \log \left (e^{1-\frac {4}{x}-x}-x\right )}\right ) \, dx \\ & = x-4 \int \frac {e^{\frac {4}{x}+x} x^2+e \left (-4+x^2\right )}{x^2 \left (-e+e^{\frac {4}{x}+x} x\right ) \log \left (e^{1-\frac {4}{x}-x}-x\right )} \, dx \\ & = x-4 \log \left (\log \left (e^{1-\frac {4}{x}-x}-x\right )\right ) \\ \end{align*}
Time = 0.75 (sec) , antiderivative size = 22, normalized size of antiderivative = 0.85 \[ \int \frac {4 x^2+e^{\frac {-4+x-x^2}{x}} \left (-16+4 x^2\right )+\left (e^{\frac {-4+x-x^2}{x}} x^2-x^3\right ) \log \left (e^{\frac {-4+x-x^2}{x}}-x\right )}{\left (e^{\frac {-4+x-x^2}{x}} x^2-x^3\right ) \log \left (e^{\frac {-4+x-x^2}{x}}-x\right )} \, dx=x-4 \log \left (\log \left (e^{1-\frac {4}{x}-x}-x\right )\right ) \]
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Time = 0.12 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.92
method | result | size |
norman | \(x -4 \ln \left (\ln \left ({\mathrm e}^{\frac {-x^{2}+x -4}{x}}-x \right )\right )\) | \(24\) |
risch | \(x -4 \ln \left (\ln \left ({\mathrm e}^{-\frac {x^{2}-x +4}{x}}-x \right )\right )\) | \(25\) |
parallelrisch | \(x -4 \ln \left (\ln \left ({\mathrm e}^{-\frac {x^{2}-x +4}{x}}-x \right )\right )\) | \(25\) |
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Time = 0.25 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.92 \[ \int \frac {4 x^2+e^{\frac {-4+x-x^2}{x}} \left (-16+4 x^2\right )+\left (e^{\frac {-4+x-x^2}{x}} x^2-x^3\right ) \log \left (e^{\frac {-4+x-x^2}{x}}-x\right )}{\left (e^{\frac {-4+x-x^2}{x}} x^2-x^3\right ) \log \left (e^{\frac {-4+x-x^2}{x}}-x\right )} \, dx=x - 4 \, \log \left (\log \left (-x + e^{\left (-\frac {x^{2} - x + 4}{x}\right )}\right )\right ) \]
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Time = 0.21 (sec) , antiderivative size = 17, normalized size of antiderivative = 0.65 \[ \int \frac {4 x^2+e^{\frac {-4+x-x^2}{x}} \left (-16+4 x^2\right )+\left (e^{\frac {-4+x-x^2}{x}} x^2-x^3\right ) \log \left (e^{\frac {-4+x-x^2}{x}}-x\right )}{\left (e^{\frac {-4+x-x^2}{x}} x^2-x^3\right ) \log \left (e^{\frac {-4+x-x^2}{x}}-x\right )} \, dx=x - 4 \log {\left (\log {\left (- x + e^{\frac {- x^{2} + x - 4}{x}} \right )} \right )} \]
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Time = 0.27 (sec) , antiderivative size = 33, normalized size of antiderivative = 1.27 \[ \int \frac {4 x^2+e^{\frac {-4+x-x^2}{x}} \left (-16+4 x^2\right )+\left (e^{\frac {-4+x-x^2}{x}} x^2-x^3\right ) \log \left (e^{\frac {-4+x-x^2}{x}}-x\right )}{\left (e^{\frac {-4+x-x^2}{x}} x^2-x^3\right ) \log \left (e^{\frac {-4+x-x^2}{x}}-x\right )} \, dx=x - 4 \, \log \left (-\frac {x^{2} - x \log \left (-x e^{\left (x + \frac {4}{x}\right )} + e\right ) + 4}{x}\right ) \]
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Time = 0.38 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.92 \[ \int \frac {4 x^2+e^{\frac {-4+x-x^2}{x}} \left (-16+4 x^2\right )+\left (e^{\frac {-4+x-x^2}{x}} x^2-x^3\right ) \log \left (e^{\frac {-4+x-x^2}{x}}-x\right )}{\left (e^{\frac {-4+x-x^2}{x}} x^2-x^3\right ) \log \left (e^{\frac {-4+x-x^2}{x}}-x\right )} \, dx=x - 4 \, \log \left (\log \left (-x + e^{\left (-\frac {x^{2} - x + 4}{x}\right )}\right )\right ) \]
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Time = 14.09 (sec) , antiderivative size = 23, normalized size of antiderivative = 0.88 \[ \int \frac {4 x^2+e^{\frac {-4+x-x^2}{x}} \left (-16+4 x^2\right )+\left (e^{\frac {-4+x-x^2}{x}} x^2-x^3\right ) \log \left (e^{\frac {-4+x-x^2}{x}}-x\right )}{\left (e^{\frac {-4+x-x^2}{x}} x^2-x^3\right ) \log \left (e^{\frac {-4+x-x^2}{x}}-x\right )} \, dx=x-4\,\ln \left (\ln \left ({\mathrm {e}}^{-x}\,\mathrm {e}\,{\mathrm {e}}^{-\frac {4}{x}}-x\right )\right ) \]
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