Optimal. Leaf size=24 \[ \frac {-2+e^4}{-5+\frac {x \log (4)}{x+\frac {81}{\log ^2(x)}}} \]
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Rubi [A]
time = 0.19, antiderivative size = 35, normalized size of antiderivative = 1.46, number of steps
used = 3, number of rules used = 4, integrand size = 72, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.056, Rules used = {6820, 12, 6874,
6818} \begin {gather*} -\frac {81 \left (2-e^4\right ) \log (4)}{(5-\log (4)) \left (x (5-\log (4)) \log ^2(x)+405\right )} \end {gather*}
Antiderivative was successfully verified.
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Rule 12
Rule 6818
Rule 6820
Rule 6874
Rubi steps
\begin {gather*} \begin {aligned} \text {integral} &=\int \frac {81 \left (2-e^4\right ) \log (4) \log (x) (2+\log (x))}{\left (405-x (-5+\log (4)) \log ^2(x)\right )^2} \, dx\\ &=\left (81 \left (2-e^4\right ) \log (4)\right ) \int \frac {\log (x) (2+\log (x))}{\left (405-x (-5+\log (4)) \log ^2(x)\right )^2} \, dx\\ &=-\frac {81 \left (2-e^4\right ) \log (4)}{(5-\log (4)) \left (405+x (5-\log (4)) \log ^2(x)\right )}\\ \end {aligned} \end {gather*}
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Mathematica [A]
time = 0.02, size = 29, normalized size = 1.21 \begin {gather*} \frac {81 \left (-2+e^4\right ) \log (4)}{(-5+\log (4)) \left (-405+x (-5+\log (4)) \log ^2(x)\right )} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.59, size = 36, normalized size = 1.50
method | result | size |
default | \(-\frac {162 \ln \left (2\right ) \left (\frac {2}{405}-\frac {{\mathrm e}^{4}}{405}\right ) \ln \left (x \right )^{2} x}{2 \ln \left (2\right ) \ln \left (x \right )^{2} x -5 x \ln \left (x \right )^{2}-405}\) | \(36\) |
norman | \(\frac {\left (\frac {2 \,{\mathrm e}^{4} \ln \left (2\right )}{5}-\frac {4 \ln \left (2\right )}{5}\right ) x \ln \left (x \right )^{2}}{2 \ln \left (2\right ) \ln \left (x \right )^{2} x -5 x \ln \left (x \right )^{2}-405}\) | \(38\) |
risch | \(\frac {162 \ln \left (2\right ) {\mathrm e}^{4}}{\left (2 \ln \left (2\right )-5\right ) \left (2 \ln \left (2\right ) \ln \left (x \right )^{2} x -5 x \ln \left (x \right )^{2}-405\right )}-\frac {324 \ln \left (2\right )}{\left (2 \ln \left (2\right )-5\right ) \left (2 \ln \left (2\right ) \ln \left (x \right )^{2} x -5 x \ln \left (x \right )^{2}-405\right )}\) | \(68\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.52, size = 38, normalized size = 1.58 \begin {gather*} \frac {162 \, {\left (e^{4} \log \left (2\right ) - 2 \, \log \left (2\right )\right )}}{{\left (4 \, \log \left (2\right )^{2} - 20 \, \log \left (2\right ) + 25\right )} x \log \left (x\right )^{2} - 810 \, \log \left (2\right ) + 2025} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.34, size = 37, normalized size = 1.54 \begin {gather*} \frac {162 \, {\left (e^{4} - 2\right )} \log \left (2\right )}{{\left (4 \, x \log \left (2\right )^{2} - 20 \, x \log \left (2\right ) + 25 \, x\right )} \log \left (x\right )^{2} - 810 \, \log \left (2\right ) + 2025} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [B] Leaf count of result is larger than twice the leaf count of optimal. 42 vs.
\(2 (20) = 40\).
time = 0.12, size = 42, normalized size = 1.75 \begin {gather*} \frac {- 324 \log {\left (2 \right )} + 162 e^{4} \log {\left (2 \right )}}{\left (- 20 x \log {\left (2 \right )} + 4 x \log {\left (2 \right )}^{2} + 25 x\right ) \log {\left (x \right )}^{2} - 810 \log {\left (2 \right )} + 2025} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 0.44, size = 47, normalized size = 1.96 \begin {gather*} \frac {162 \, {\left (e^{4} \log \left (2\right ) - 2 \, \log \left (2\right )\right )}}{4 \, x \log \left (2\right )^{2} \log \left (x\right )^{2} - 20 \, x \log \left (2\right ) \log \left (x\right )^{2} + 25 \, x \log \left (x\right )^{2} - 810 \, \log \left (2\right ) + 2025} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 3.11, size = 45, normalized size = 1.88 \begin {gather*} \frac {x^2\,{\ln \left (x\right )}^2\,\left (\frac {4\,\ln \left (2\right )}{5}-\frac {2\,{\mathrm {e}}^4\,\ln \left (2\right )}{5}\right )}{405\,x+5\,x^2\,{\ln \left (x\right )}^2-2\,x^2\,\ln \left (2\right )\,{\ln \left (x\right )}^2} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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