Integrand size = 26, antiderivative size = 21 \[ \int \frac {4 e^{-3-x} (-1-x) \log ^2(2) \log ^2(\log (2))}{x^2} \, dx=\frac {4 e^{-3-x} \log ^2(2) \log ^2(\log (2))}{x} \]
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Time = 0.02 (sec) , antiderivative size = 21, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.077, Rules used = {12, 2228} \[ \int \frac {4 e^{-3-x} (-1-x) \log ^2(2) \log ^2(\log (2))}{x^2} \, dx=\frac {4 e^{-x-3} \log ^2(2) \log ^2(\log (2))}{x} \]
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Rule 12
Rule 2228
Rubi steps \begin{align*} \text {integral}& = \left (4 \log ^2(2) \log ^2(\log (2))\right ) \int \frac {e^{-3-x} (-1-x)}{x^2} \, dx \\ & = \frac {4 e^{-3-x} \log ^2(2) \log ^2(\log (2))}{x} \\ \end{align*}
Time = 0.08 (sec) , antiderivative size = 21, normalized size of antiderivative = 1.00 \[ \int \frac {4 e^{-3-x} (-1-x) \log ^2(2) \log ^2(\log (2))}{x^2} \, dx=\frac {4 e^{-3-x} \log ^2(2) \log ^2(\log (2))}{x} \]
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Time = 0.04 (sec) , antiderivative size = 21, normalized size of antiderivative = 1.00
method | result | size |
gosper | \(\frac {4 \ln \left (2\right )^{2} \ln \left (\ln \left (2\right )\right )^{2} {\mathrm e}^{-3-x}}{x}\) | \(21\) |
derivativedivides | \(\frac {4 \ln \left (2\right )^{2} \ln \left (\ln \left (2\right )\right )^{2} {\mathrm e}^{-3-x}}{x}\) | \(21\) |
default | \(\frac {4 \ln \left (2\right )^{2} \ln \left (\ln \left (2\right )\right )^{2} {\mathrm e}^{-3-x}}{x}\) | \(21\) |
norman | \(\frac {4 \ln \left (2\right )^{2} \ln \left (\ln \left (2\right )\right )^{2} {\mathrm e}^{-3-x}}{x}\) | \(21\) |
risch | \(\frac {4 \ln \left (2\right )^{2} \ln \left (\ln \left (2\right )\right )^{2} {\mathrm e}^{-3-x}}{x}\) | \(21\) |
parallelrisch | \(\frac {4 \ln \left (2\right )^{2} \ln \left (\ln \left (2\right )\right )^{2} {\mathrm e}^{-3-x}}{x}\) | \(21\) |
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Time = 0.24 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.95 \[ \int \frac {4 e^{-3-x} (-1-x) \log ^2(2) \log ^2(\log (2))}{x^2} \, dx=\frac {4 \, e^{\left (-x - 3\right )} \log \left (2\right )^{2} \log \left (\log \left (2\right )\right )^{2}}{x} \]
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Time = 0.06 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.95 \[ \int \frac {4 e^{-3-x} (-1-x) \log ^2(2) \log ^2(\log (2))}{x^2} \, dx=\frac {4 e^{- x - 3} \log {\left (2 \right )}^{2} \log {\left (\log {\left (2 \right )} \right )}^{2}}{x} \]
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Result contains higher order function than in optimal. Order 4 vs. order 3.
Time = 0.22 (sec) , antiderivative size = 26, normalized size of antiderivative = 1.24 \[ \int \frac {4 e^{-3-x} (-1-x) \log ^2(2) \log ^2(\log (2))}{x^2} \, dx=-4 \, {\left ({\rm Ei}\left (-x\right ) e^{\left (-3\right )} - e^{\left (-3\right )} \Gamma \left (-1, x\right )\right )} \log \left (2\right )^{2} \log \left (\log \left (2\right )\right )^{2} \]
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Time = 0.29 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.95 \[ \int \frac {4 e^{-3-x} (-1-x) \log ^2(2) \log ^2(\log (2))}{x^2} \, dx=\frac {4 \, e^{\left (-x - 3\right )} \log \left (2\right )^{2} \log \left (\log \left (2\right )\right )^{2}}{x} \]
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Time = 11.06 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.95 \[ \int \frac {4 e^{-3-x} (-1-x) \log ^2(2) \log ^2(\log (2))}{x^2} \, dx=\frac {4\,{\mathrm {e}}^{-x}\,{\mathrm {e}}^{-3}\,{\ln \left (2\right )}^2\,{\ln \left (\ln \left (2\right )\right )}^2}{x} \]
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