Integrand size = 40, antiderivative size = 23 \[ \int \frac {x-x^3+\left (-2 x+4 x^3\right ) \log (x)+2 x \log ^2(x)+20 \log ^2(x) \log (\log (2))}{\log ^2(x)} \, dx=\frac {x \left (-x+x^3\right )}{\log (x)}+(x+10 \log (\log (2)))^2 \]
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Time = 0.13 (sec) , antiderivative size = 27, normalized size of antiderivative = 1.17, number of steps used = 16, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.125, Rules used = {6874, 2395, 2343, 2346, 2209} \[ \int \frac {x-x^3+\left (-2 x+4 x^3\right ) \log (x)+2 x \log ^2(x)+20 \log ^2(x) \log (\log (2))}{\log ^2(x)} \, dx=\frac {x^4}{\log (x)}-\frac {x^2}{\log (x)}+(x+10 \log (\log (2)))^2 \]
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Rule 2209
Rule 2343
Rule 2346
Rule 2395
Rule 6874
Rubi steps \begin{align*} \text {integral}& = \int \left (\frac {x \left (1-x^2\right )}{\log ^2(x)}+\frac {2 x \left (-1+2 x^2\right )}{\log (x)}+2 (x+10 \log (\log (2)))\right ) \, dx \\ & = (x+10 \log (\log (2)))^2+2 \int \frac {x \left (-1+2 x^2\right )}{\log (x)} \, dx+\int \frac {x \left (1-x^2\right )}{\log ^2(x)} \, dx \\ & = (x+10 \log (\log (2)))^2+2 \int \left (-\frac {x}{\log (x)}+\frac {2 x^3}{\log (x)}\right ) \, dx+\int \left (\frac {x}{\log ^2(x)}-\frac {x^3}{\log ^2(x)}\right ) \, dx \\ & = (x+10 \log (\log (2)))^2-2 \int \frac {x}{\log (x)} \, dx+4 \int \frac {x^3}{\log (x)} \, dx+\int \frac {x}{\log ^2(x)} \, dx-\int \frac {x^3}{\log ^2(x)} \, dx \\ & = -\frac {x^2}{\log (x)}+\frac {x^4}{\log (x)}+(x+10 \log (\log (2)))^2+2 \int \frac {x}{\log (x)} \, dx-2 \text {Subst}\left (\int \frac {e^{2 x}}{x} \, dx,x,\log (x)\right )-4 \int \frac {x^3}{\log (x)} \, dx+4 \text {Subst}\left (\int \frac {e^{4 x}}{x} \, dx,x,\log (x)\right ) \\ & = -2 \operatorname {ExpIntegralEi}(2 \log (x))+4 \operatorname {ExpIntegralEi}(4 \log (x))-\frac {x^2}{\log (x)}+\frac {x^4}{\log (x)}+(x+10 \log (\log (2)))^2+2 \text {Subst}\left (\int \frac {e^{2 x}}{x} \, dx,x,\log (x)\right )-4 \text {Subst}\left (\int \frac {e^{4 x}}{x} \, dx,x,\log (x)\right ) \\ & = -\frac {x^2}{\log (x)}+\frac {x^4}{\log (x)}+(x+10 \log (\log (2)))^2 \\ \end{align*}
Time = 0.13 (sec) , antiderivative size = 27, normalized size of antiderivative = 1.17 \[ \int \frac {x-x^3+\left (-2 x+4 x^3\right ) \log (x)+2 x \log ^2(x)+20 \log ^2(x) \log (\log (2))}{\log ^2(x)} \, dx=x^2-\frac {x^2}{\log (x)}+\frac {x^4}{\log (x)}+20 x \log (\log (2)) \]
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Time = 0.16 (sec) , antiderivative size = 24, normalized size of antiderivative = 1.04
method | result | size |
risch | \(20 x \ln \left (\ln \left (2\right )\right )+x^{2}+\frac {x^{2} \left (x^{2}-1\right )}{\ln \left (x \right )}\) | \(24\) |
default | \(20 x \ln \left (\ln \left (2\right )\right )+x^{2}+\frac {x^{4}}{\ln \left (x \right )}-\frac {x^{2}}{\ln \left (x \right )}\) | \(28\) |
parts | \(20 x \ln \left (\ln \left (2\right )\right )+x^{2}+\frac {x^{4}}{\ln \left (x \right )}-\frac {x^{2}}{\ln \left (x \right )}\) | \(28\) |
norman | \(\frac {x^{4}+x^{2} \ln \left (x \right )-x^{2}+20 x \ln \left (\ln \left (2\right )\right ) \ln \left (x \right )}{\ln \left (x \right )}\) | \(29\) |
parallelrisch | \(\frac {x^{4}+x^{2} \ln \left (x \right )-x^{2}+20 x \ln \left (\ln \left (2\right )\right ) \ln \left (x \right )}{\ln \left (x \right )}\) | \(29\) |
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Time = 0.26 (sec) , antiderivative size = 28, normalized size of antiderivative = 1.22 \[ \int \frac {x-x^3+\left (-2 x+4 x^3\right ) \log (x)+2 x \log ^2(x)+20 \log ^2(x) \log (\log (2))}{\log ^2(x)} \, dx=\frac {x^{4} + x^{2} \log \left (x\right ) + 20 \, x \log \left (x\right ) \log \left (\log \left (2\right )\right ) - x^{2}}{\log \left (x\right )} \]
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Time = 0.04 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.87 \[ \int \frac {x-x^3+\left (-2 x+4 x^3\right ) \log (x)+2 x \log ^2(x)+20 \log ^2(x) \log (\log (2))}{\log ^2(x)} \, dx=x^{2} + 20 x \log {\left (\log {\left (2 \right )} \right )} + \frac {x^{4} - x^{2}}{\log {\left (x \right )}} \]
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Result contains higher order function than in optimal. Order 4 vs. order 3.
Time = 0.23 (sec) , antiderivative size = 40, normalized size of antiderivative = 1.74 \[ \int \frac {x-x^3+\left (-2 x+4 x^3\right ) \log (x)+2 x \log ^2(x)+20 \log ^2(x) \log (\log (2))}{\log ^2(x)} \, dx=x^{2} + 20 \, x \log \left (\log \left (2\right )\right ) + 4 \, {\rm Ei}\left (4 \, \log \left (x\right )\right ) - 2 \, {\rm Ei}\left (2 \, \log \left (x\right )\right ) + 2 \, \Gamma \left (-1, -2 \, \log \left (x\right )\right ) - 4 \, \Gamma \left (-1, -4 \, \log \left (x\right )\right ) \]
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Time = 0.29 (sec) , antiderivative size = 27, normalized size of antiderivative = 1.17 \[ \int \frac {x-x^3+\left (-2 x+4 x^3\right ) \log (x)+2 x \log ^2(x)+20 \log ^2(x) \log (\log (2))}{\log ^2(x)} \, dx=\frac {x^{4}}{\log \left (x\right )} + x^{2} + 20 \, x \log \left (\log \left (2\right )\right ) - \frac {x^{2}}{\log \left (x\right )} \]
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Time = 12.47 (sec) , antiderivative size = 24, normalized size of antiderivative = 1.04 \[ \int \frac {x-x^3+\left (-2 x+4 x^3\right ) \log (x)+2 x \log ^2(x)+20 \log ^2(x) \log (\log (2))}{\log ^2(x)} \, dx=x\,\left (x+20\,\ln \left (\ln \left (2\right )\right )\right )-\frac {x\,\left (x-x^3\right )}{\ln \left (x\right )} \]
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