Optimal. Leaf size=26 \[ \log \left (\frac {1}{2} \left (x+\log \left (\frac {e^{-4-x} x^3}{10 \log (x)}\right )\right )\right ) \]
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Rubi [F]
time = 0.41, antiderivative size = 0, normalized size of antiderivative = 0.00, number of steps
used = 0, number of rules used = 0, integrand size = 0, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.000, Rules used = {}
\begin {gather*} \int \frac {-1+3 \log (x)}{x^2 \log (x)+x \log (x) \log \left (\frac {e^{-4-x} x^3}{10 \log (x)}\right )} \, dx \end {gather*}
Verification is not applicable to the result.
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Rubi steps
\begin {gather*} \begin {aligned} \text {integral} &=\int \frac {-1+3 \log (x)}{x \log (x) \left (x+\log \left (\frac {e^{-4-x} x^3}{10 \log (x)}\right )\right )} \, dx\\ &=\int \left (\frac {3}{x \left (x+\log \left (\frac {e^{-4-x} x^3}{10 \log (x)}\right )\right )}-\frac {1}{x \log (x) \left (x+\log \left (\frac {e^{-4-x} x^3}{10 \log (x)}\right )\right )}\right ) \, dx\\ &=3 \int \frac {1}{x \left (x+\log \left (\frac {e^{-4-x} x^3}{10 \log (x)}\right )\right )} \, dx-\int \frac {1}{x \log (x) \left (x+\log \left (\frac {e^{-4-x} x^3}{10 \log (x)}\right )\right )} \, dx\\ \end {aligned} \end {gather*}
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Mathematica [A]
time = 0.04, size = 22, normalized size = 0.85 \begin {gather*} \log \left (x+\log \left (\frac {e^{-4-x} x^3}{10 \log (x)}\right )\right ) \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 14.00, size = 22, normalized size = 0.85
method | result | size |
default | \(\ln \left (\ln \left (\frac {x^{3} {\mathrm e}^{-4} {\mathrm e}^{-x}}{10 \ln \left (x \right )}\right )+x \right )\) | \(22\) |
risch | \(\ln \left (4-x +\frac {i \pi \mathrm {csgn}\left (i x^{3}\right )^{3}}{2}-\frac {i \pi \,\mathrm {csgn}\left (\frac {i {\mathrm e}^{-x}}{\ln \left (x \right )}\right ) \mathrm {csgn}\left (\frac {i x^{3} {\mathrm e}^{-x}}{\ln \left (x \right )}\right )^{2}}{2}+\frac {i \pi \,\mathrm {csgn}\left (i x^{3}\right ) \mathrm {csgn}\left (i x \right ) \mathrm {csgn}\left (i x^{2}\right )}{2}+\frac {i \pi \mathrm {csgn}\left (i x^{2}\right )^{3}}{2}-\frac {i \pi \,\mathrm {csgn}\left (\frac {i}{\ln \left (x \right )}\right ) \mathrm {csgn}\left (\frac {i {\mathrm e}^{-x}}{\ln \left (x \right )}\right )^{2}}{2}+\frac {i \pi \,\mathrm {csgn}\left (i x^{3}\right ) \mathrm {csgn}\left (\frac {i {\mathrm e}^{-x}}{\ln \left (x \right )}\right ) \mathrm {csgn}\left (\frac {i x^{3} {\mathrm e}^{-x}}{\ln \left (x \right )}\right )}{2}+\frac {i \pi \,\mathrm {csgn}\left (i {\mathrm e}^{-x}\right ) \mathrm {csgn}\left (\frac {i}{\ln \left (x \right )}\right ) \mathrm {csgn}\left (\frac {i {\mathrm e}^{-x}}{\ln \left (x \right )}\right )}{2}-\frac {i \pi \mathrm {csgn}\left (i x^{3}\right )^{2} \mathrm {csgn}\left (i x \right )}{2}+\ln \left ({\mathrm e}^{x}\right )+\ln \left (5\right )+\ln \left (2\right )+\ln \left (\ln \left (x \right )\right )-3 \ln \left (x \right )+\frac {i \pi \mathrm {csgn}\left (i x \right )^{2} \mathrm {csgn}\left (i x^{2}\right )}{2}-\frac {i \pi \,\mathrm {csgn}\left (i x^{3}\right ) \mathrm {csgn}\left (\frac {i x^{3} {\mathrm e}^{-x}}{\ln \left (x \right )}\right )^{2}}{2}+\frac {i \pi \mathrm {csgn}\left (\frac {i {\mathrm e}^{-x}}{\ln \left (x \right )}\right )^{3}}{2}-i \pi \,\mathrm {csgn}\left (i x \right ) \mathrm {csgn}\left (i x^{2}\right )^{2}-\frac {i \pi \mathrm {csgn}\left (i x^{3}\right )^{2} \mathrm {csgn}\left (i x^{2}\right )}{2}-\frac {i \pi \,\mathrm {csgn}\left (i {\mathrm e}^{-x}\right ) \mathrm {csgn}\left (\frac {i {\mathrm e}^{-x}}{\ln \left (x \right )}\right )^{2}}{2}+\frac {i \pi \mathrm {csgn}\left (\frac {i x^{3} {\mathrm e}^{-x}}{\ln \left (x \right )}\right )^{3}}{2}\right )\) | \(366\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.55, size = 14, normalized size = 0.54 \begin {gather*} \log \left (\log \left (5\right ) + \log \left (2\right ) - 3 \, \log \left (x\right ) + \log \left (\log \left (x\right )\right ) + 4\right ) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.36, size = 19, normalized size = 0.73 \begin {gather*} \log \left (x + \log \left (\frac {x^{3} e^{\left (-x - 4\right )}}{10 \, \log \left (x\right )}\right )\right ) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A]
time = 0.13, size = 19, normalized size = 0.73 \begin {gather*} \log {\left (x + \log {\left (\frac {x^{3} e^{- x}}{10 e^{4} \log {\left (x \right )}} \right )} \right )} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 0.41, size = 12, normalized size = 0.46 \begin {gather*} \log \left (\log \left (10\right ) - 3 \, \log \left (x\right ) + \log \left (\log \left (x\right )\right ) + 4\right ) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 3.58, size = 13, normalized size = 0.50 \begin {gather*} \ln \left (\ln \left (\frac {x^3}{10\,\ln \left (x\right )}\right )-4\right ) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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