Integrand size = 109, antiderivative size = 26 \[ \int \frac {2-33 x+16 x^2-2 x^3+\left (16 x-8 x^2+x^3\right ) \log \left (3 e^{\frac {-1+\left (-8 x+2 x^2\right ) \log (x)}{-8 x+2 x^2}} x\right )}{\left (16 x-8 x^2+x^3\right ) \log ^2\left (3 e^{\frac {-1+\left (-8 x+2 x^2\right ) \log (x)}{-8 x+2 x^2}} x\right )} \, dx=\frac {x}{\log \left (3 e^{\frac {1}{2 (4-x) x}} x^2\right )} \]
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Time = 0.34 (sec) , antiderivative size = 26, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.037, Rules used = {1608, 27, 6820, 6819} \[ \int \frac {2-33 x+16 x^2-2 x^3+\left (16 x-8 x^2+x^3\right ) \log \left (3 e^{\frac {-1+\left (-8 x+2 x^2\right ) \log (x)}{-8 x+2 x^2}} x\right )}{\left (16 x-8 x^2+x^3\right ) \log ^2\left (3 e^{\frac {-1+\left (-8 x+2 x^2\right ) \log (x)}{-8 x+2 x^2}} x\right )} \, dx=\frac {x}{\log \left (3 e^{\frac {1}{2 (4-x) x}} x^2\right )} \]
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Rule 27
Rule 1608
Rule 6819
Rule 6820
Rubi steps \begin{align*} \text {integral}& = \int \frac {2-33 x+16 x^2-2 x^3+\left (16 x-8 x^2+x^3\right ) \log \left (3 \exp \left (\frac {-1+\left (-8 x+2 x^2\right ) \log (x)}{-8 x+2 x^2}\right ) x\right )}{x \left (16-8 x+x^2\right ) \log ^2\left (3 \exp \left (\frac {-1+\left (-8 x+2 x^2\right ) \log (x)}{-8 x+2 x^2}\right ) x\right )} \, dx \\ & = \int \frac {2-33 x+16 x^2-2 x^3+\left (16 x-8 x^2+x^3\right ) \log \left (3 \exp \left (\frac {-1+\left (-8 x+2 x^2\right ) \log (x)}{-8 x+2 x^2}\right ) x\right )}{(-4+x)^2 x \log ^2\left (3 \exp \left (\frac {-1+\left (-8 x+2 x^2\right ) \log (x)}{-8 x+2 x^2}\right ) x\right )} \, dx \\ & = \int \frac {2-33 x+16 x^2-2 x^3+(-4+x)^2 x \log \left (3 e^{\frac {1}{8 x-2 x^2}} x^2\right )}{(4-x)^2 x \log ^2\left (3 e^{\frac {1}{(8-2 x) x}} x^2\right )} \, dx \\ & = \frac {x}{\log \left (3 e^{\frac {1}{2 (4-x) x}} x^2\right )} \\ \end{align*}
Time = 0.40 (sec) , antiderivative size = 23, normalized size of antiderivative = 0.88 \[ \int \frac {2-33 x+16 x^2-2 x^3+\left (16 x-8 x^2+x^3\right ) \log \left (3 e^{\frac {-1+\left (-8 x+2 x^2\right ) \log (x)}{-8 x+2 x^2}} x\right )}{\left (16 x-8 x^2+x^3\right ) \log ^2\left (3 e^{\frac {-1+\left (-8 x+2 x^2\right ) \log (x)}{-8 x+2 x^2}} x\right )} \, dx=\frac {x}{\log \left (3 e^{\frac {1}{8 x-2 x^2}} x^2\right )} \]
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Leaf count of result is larger than twice the leaf count of optimal. \(57\) vs. \(2(24)=48\).
Time = 2.85 (sec) , antiderivative size = 58, normalized size of antiderivative = 2.23
method | result | size |
parallelrisch | \(\frac {98304 x^{5}-786432 x^{4}+1572864 x^{3}}{98304 x^{2} \ln \left (3 x \,{\mathrm e}^{\frac {\left (2 x^{2}-8 x \right ) \ln \left (x \right )-1}{2 \left (x -4\right ) x}}\right ) \left (x -4\right )^{2}}\) | \(58\) |
risch | \(\frac {2 i x}{\pi \,\operatorname {csgn}\left (i x \right ) \operatorname {csgn}\left (i x^{\frac {x}{x -4}} x^{-\frac {4}{x -4}} {\mathrm e}^{-\frac {1}{2 \left (x -4\right ) x}}\right ) \operatorname {csgn}\left (i x \,x^{\frac {x}{x -4}} x^{-\frac {4}{x -4}} {\mathrm e}^{-\frac {1}{2 \left (x -4\right ) x}}\right )-\pi \,\operatorname {csgn}\left (i x \right ) \operatorname {csgn}\left (i x \,x^{\frac {x}{x -4}} x^{-\frac {4}{x -4}} {\mathrm e}^{-\frac {1}{2 \left (x -4\right ) x}}\right )^{2}-\pi \,\operatorname {csgn}\left (i x^{\frac {x}{x -4}} x^{-\frac {4}{x -4}} {\mathrm e}^{-\frac {1}{2 \left (x -4\right ) x}}\right ) \operatorname {csgn}\left (i x \,x^{\frac {x}{x -4}} x^{-\frac {4}{x -4}} {\mathrm e}^{-\frac {1}{2 \left (x -4\right ) x}}\right )^{2}+\pi \operatorname {csgn}\left (i x \,x^{\frac {x}{x -4}} x^{-\frac {4}{x -4}} {\mathrm e}^{-\frac {1}{2 \left (x -4\right ) x}}\right )^{3}+2 i \ln \left (3\right )+2 i \ln \left (x \right )+2 i \ln \left (x^{\frac {x}{x -4}} x^{-\frac {4}{x -4}} {\mathrm e}^{-\frac {1}{2 \left (x -4\right ) x}}\right )}\) | \(280\) |
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Time = 0.25 (sec) , antiderivative size = 37, normalized size of antiderivative = 1.42 \[ \int \frac {2-33 x+16 x^2-2 x^3+\left (16 x-8 x^2+x^3\right ) \log \left (3 e^{\frac {-1+\left (-8 x+2 x^2\right ) \log (x)}{-8 x+2 x^2}} x\right )}{\left (16 x-8 x^2+x^3\right ) \log ^2\left (3 e^{\frac {-1+\left (-8 x+2 x^2\right ) \log (x)}{-8 x+2 x^2}} x\right )} \, dx=\frac {2 \, {\left (x^{3} - 4 \, x^{2}\right )}}{2 \, {\left (x^{2} - 4 \, x\right )} \log \left (3\right ) + 4 \, {\left (x^{2} - 4 \, x\right )} \log \left (x\right ) - 1} \]
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Leaf count of result is larger than twice the leaf count of optimal. 37 vs. \(2 (17) = 34\).
Time = 0.33 (sec) , antiderivative size = 37, normalized size of antiderivative = 1.42 \[ \int \frac {2-33 x+16 x^2-2 x^3+\left (16 x-8 x^2+x^3\right ) \log \left (3 e^{\frac {-1+\left (-8 x+2 x^2\right ) \log (x)}{-8 x+2 x^2}} x\right )}{\left (16 x-8 x^2+x^3\right ) \log ^2\left (3 e^{\frac {-1+\left (-8 x+2 x^2\right ) \log (x)}{-8 x+2 x^2}} x\right )} \, dx=\frac {2 x^{3} - 8 x^{2}}{2 x^{2} \log {\left (3 \right )} - 8 x \log {\left (3 \right )} + \left (4 x^{2} - 16 x\right ) \log {\left (x \right )} - 1} \]
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\[ \int \frac {2-33 x+16 x^2-2 x^3+\left (16 x-8 x^2+x^3\right ) \log \left (3 e^{\frac {-1+\left (-8 x+2 x^2\right ) \log (x)}{-8 x+2 x^2}} x\right )}{\left (16 x-8 x^2+x^3\right ) \log ^2\left (3 e^{\frac {-1+\left (-8 x+2 x^2\right ) \log (x)}{-8 x+2 x^2}} x\right )} \, dx=\int { -\frac {2 \, x^{3} - 16 \, x^{2} - {\left (x^{3} - 8 \, x^{2} + 16 \, x\right )} \log \left (3 \, x e^{\left (\frac {2 \, {\left (x^{2} - 4 \, x\right )} \log \left (x\right ) - 1}{2 \, {\left (x^{2} - 4 \, x\right )}}\right )}\right ) + 33 \, x - 2}{{\left (x^{3} - 8 \, x^{2} + 16 \, x\right )} \log \left (3 \, x e^{\left (\frac {2 \, {\left (x^{2} - 4 \, x\right )} \log \left (x\right ) - 1}{2 \, {\left (x^{2} - 4 \, x\right )}}\right )}\right )^{2}} \,d x } \]
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Time = 1.00 (sec) , antiderivative size = 39, normalized size of antiderivative = 1.50 \[ \int \frac {2-33 x+16 x^2-2 x^3+\left (16 x-8 x^2+x^3\right ) \log \left (3 e^{\frac {-1+\left (-8 x+2 x^2\right ) \log (x)}{-8 x+2 x^2}} x\right )}{\left (16 x-8 x^2+x^3\right ) \log ^2\left (3 e^{\frac {-1+\left (-8 x+2 x^2\right ) \log (x)}{-8 x+2 x^2}} x\right )} \, dx=\frac {2 \, {\left (x^{3} - 4 \, x^{2}\right )}}{2 \, x^{2} \log \left (3\right ) + 4 \, x^{2} \log \left (x\right ) - 8 \, x \log \left (3\right ) - 16 \, x \log \left (x\right ) - 1} \]
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Timed out. \[ \int \frac {2-33 x+16 x^2-2 x^3+\left (16 x-8 x^2+x^3\right ) \log \left (3 e^{\frac {-1+\left (-8 x+2 x^2\right ) \log (x)}{-8 x+2 x^2}} x\right )}{\left (16 x-8 x^2+x^3\right ) \log ^2\left (3 e^{\frac {-1+\left (-8 x+2 x^2\right ) \log (x)}{-8 x+2 x^2}} x\right )} \, dx=\int \frac {\ln \left (3\,x\,{\mathrm {e}}^{\frac {\ln \left (x\right )\,\left (8\,x-2\,x^2\right )+1}{8\,x-2\,x^2}}\right )\,\left (x^3-8\,x^2+16\,x\right )-33\,x+16\,x^2-2\,x^3+2}{{\ln \left (3\,x\,{\mathrm {e}}^{\frac {\ln \left (x\right )\,\left (8\,x-2\,x^2\right )+1}{8\,x-2\,x^2}}\right )}^2\,\left (x^3-8\,x^2+16\,x\right )} \,d x \]
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