Integrand size = 40, antiderivative size = 24 \[ \int \frac {16-12 x+e x-4 x^2+\left (12 x-e x+8 x^2\right ) \log (x)}{80 x \log ^2(x)} \, dx=\frac {x \left (2-\frac {e}{4}+\frac {-4+x}{x}+x\right )}{20 \log (x)} \]
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\[ \int \frac {16-12 x+e x-4 x^2+\left (12 x-e x+8 x^2\right ) \log (x)}{80 x \log ^2(x)} \, dx=\int \frac {16-12 x+e x-4 x^2+\left (12 x-e x+8 x^2\right ) \log (x)}{80 x \log ^2(x)} \, dx \]
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Rubi steps \begin{align*} \text {integral}& = \int \frac {16+(-12+e) x-4 x^2+\left (12 x-e x+8 x^2\right ) \log (x)}{80 x \log ^2(x)} \, dx \\ & = \frac {1}{80} \int \frac {16+(-12+e) x-4 x^2+\left (12 x-e x+8 x^2\right ) \log (x)}{x \log ^2(x)} \, dx \\ & = \frac {1}{80} \int \left (\frac {16-(12-e) x-4 x^2}{x \log ^2(x)}+\frac {12-e+8 x}{\log (x)}\right ) \, dx \\ & = \frac {1}{80} \int \frac {16-(12-e) x-4 x^2}{x \log ^2(x)} \, dx+\frac {1}{80} \int \frac {12-e+8 x}{\log (x)} \, dx \\ & = \frac {1}{80} \int \left (\frac {12 \left (1-\frac {e}{12}\right )}{\log (x)}+\frac {8 x}{\log (x)}\right ) \, dx+\frac {1}{80} \int \frac {16-(12-e) x-4 x^2}{x \log ^2(x)} \, dx \\ & = \frac {1}{80} \int \frac {16-(12-e) x-4 x^2}{x \log ^2(x)} \, dx+\frac {1}{10} \int \frac {x}{\log (x)} \, dx+\frac {1}{80} (12-e) \int \frac {1}{\log (x)} \, dx \\ & = \frac {1}{80} (12-e) \operatorname {LogIntegral}(x)+\frac {1}{80} \int \frac {16-(12-e) x-4 x^2}{x \log ^2(x)} \, dx+\frac {1}{10} \text {Subst}\left (\int \frac {e^{2 x}}{x} \, dx,x,\log (x)\right ) \\ & = \frac {1}{10} \operatorname {ExpIntegralEi}(2 \log (x))+\frac {1}{80} (12-e) \operatorname {LogIntegral}(x)+\frac {1}{80} \int \frac {16-(12-e) x-4 x^2}{x \log ^2(x)} \, dx \\ \end{align*}
Time = 0.10 (sec) , antiderivative size = 22, normalized size of antiderivative = 0.92 \[ \int \frac {16-12 x+e x-4 x^2+\left (12 x-e x+8 x^2\right ) \log (x)}{80 x \log ^2(x)} \, dx=\frac {-16+12 x-e x+4 x^2}{80 \log (x)} \]
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Time = 0.04 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.88
method | result | size |
norman | \(\frac {-\frac {1}{5}+\left (-\frac {{\mathrm e}}{80}+\frac {3}{20}\right ) x +\frac {x^{2}}{20}}{\ln \left (x \right )}\) | \(21\) |
risch | \(-\frac {x \,{\mathrm e}-4 x^{2}-12 x +16}{80 \ln \left (x \right )}\) | \(21\) |
parallelrisch | \(-\frac {x \,{\mathrm e}-4 x^{2}-12 x +16}{80 \ln \left (x \right )}\) | \(21\) |
default | \(\frac {{\mathrm e} \,\operatorname {Ei}_{1}\left (-\ln \left (x \right )\right )}{80}+\frac {{\mathrm e} \left (-\frac {x}{\ln \left (x \right )}-\operatorname {Ei}_{1}\left (-\ln \left (x \right )\right )\right )}{80}+\frac {x^{2}}{20 \ln \left (x \right )}+\frac {3 x}{20 \ln \left (x \right )}-\frac {1}{5 \ln \left (x \right )}\) | \(54\) |
parts | \(\frac {{\mathrm e} \,\operatorname {Ei}_{1}\left (-\ln \left (x \right )\right )}{80}+\frac {{\mathrm e} \left (-\frac {x}{\ln \left (x \right )}-\operatorname {Ei}_{1}\left (-\ln \left (x \right )\right )\right )}{80}+\frac {x^{2}}{20 \ln \left (x \right )}+\frac {3 x}{20 \ln \left (x \right )}-\frac {1}{5 \ln \left (x \right )}\) | \(54\) |
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Time = 0.24 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.88 \[ \int \frac {16-12 x+e x-4 x^2+\left (12 x-e x+8 x^2\right ) \log (x)}{80 x \log ^2(x)} \, dx=\frac {4 \, x^{2} - x e + 12 \, x - 16}{80 \, \log \left (x\right )} \]
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Time = 0.05 (sec) , antiderivative size = 19, normalized size of antiderivative = 0.79 \[ \int \frac {16-12 x+e x-4 x^2+\left (12 x-e x+8 x^2\right ) \log (x)}{80 x \log ^2(x)} \, dx=\frac {4 x^{2} - e x + 12 x - 16}{80 \log {\left (x \right )}} \]
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Result contains higher order function than in optimal. Order 4 vs. order 3.
Time = 0.22 (sec) , antiderivative size = 52, normalized size of antiderivative = 2.17 \[ \int \frac {16-12 x+e x-4 x^2+\left (12 x-e x+8 x^2\right ) \log (x)}{80 x \log ^2(x)} \, dx=-\frac {1}{80} \, {\rm Ei}\left (\log \left (x\right )\right ) e + \frac {1}{80} \, e \Gamma \left (-1, -\log \left (x\right )\right ) - \frac {1}{5 \, \log \left (x\right )} + \frac {1}{10} \, {\rm Ei}\left (2 \, \log \left (x\right )\right ) + \frac {3}{20} \, {\rm Ei}\left (\log \left (x\right )\right ) - \frac {3}{20} \, \Gamma \left (-1, -\log \left (x\right )\right ) - \frac {1}{10} \, \Gamma \left (-1, -2 \, \log \left (x\right )\right ) \]
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Time = 0.26 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.88 \[ \int \frac {16-12 x+e x-4 x^2+\left (12 x-e x+8 x^2\right ) \log (x)}{80 x \log ^2(x)} \, dx=\frac {4 \, x^{2} - x e + 12 \, x - 16}{80 \, \log \left (x\right )} \]
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Time = 9.52 (sec) , antiderivative size = 28, normalized size of antiderivative = 1.17 \[ \int \frac {16-12 x+e x-4 x^2+\left (12 x-e x+8 x^2\right ) \log (x)}{80 x \log ^2(x)} \, dx=-\frac {-4\,x^4+\left (\mathrm {e}-12\right )\,x^3+16\,x^2}{80\,x^2\,\ln \left (x\right )} \]
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