Integrand size = 125, antiderivative size = 30 \[ \int \frac {-32 i \pi +8 e^{3 x} x+e^{3 x} \left (8 x+24 x^2\right ) \log (x)+\left (-\pi ^2 \left (480 x+32 x^2\right )+i e^{3 x} \pi \left (-240 x^2-16 x^3\right )+e^{6 x} \left (30 x^3+2 x^4\right )\right ) \log ^2(x)}{\left (-16 \pi ^2 x-8 i e^{3 x} \pi x^2+e^{6 x} x^3\right ) \log ^2(x)} \, dx=(15+x)^2+\frac {2}{\left (i \pi -\frac {1}{4} e^{3 x} x\right ) \log (x)} \]
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\[ \int \frac {-32 i \pi +8 e^{3 x} x+e^{3 x} \left (8 x+24 x^2\right ) \log (x)+\left (-\pi ^2 \left (480 x+32 x^2\right )+i e^{3 x} \pi \left (-240 x^2-16 x^3\right )+e^{6 x} \left (30 x^3+2 x^4\right )\right ) \log ^2(x)}{\left (-16 \pi ^2 x-8 i e^{3 x} \pi x^2+e^{6 x} x^3\right ) \log ^2(x)} \, dx=\int \frac {-32 i \pi +8 e^{3 x} x+e^{3 x} \left (8 x+24 x^2\right ) \log (x)+\left (-\pi ^2 \left (480 x+32 x^2\right )+i e^{3 x} \pi \left (-240 x^2-16 x^3\right )+e^{6 x} \left (30 x^3+2 x^4\right )\right ) \log ^2(x)}{\left (-16 \pi ^2 x-8 i e^{3 x} \pi x^2+e^{6 x} x^3\right ) \log ^2(x)} \, dx \]
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Rubi steps \begin{align*} \text {integral}& = \int 2 \left (15+x+\frac {4}{x \left (-4 i \pi +e^{3 x} x\right ) \log ^2(x)}+\frac {4 e^{3 x} (1+3 x)}{\left (-4 i \pi +e^{3 x} x\right )^2 \log (x)}\right ) \, dx \\ & = 2 \int \left (15+x+\frac {4}{x \left (-4 i \pi +e^{3 x} x\right ) \log ^2(x)}+\frac {4 e^{3 x} (1+3 x)}{\left (-4 i \pi +e^{3 x} x\right )^2 \log (x)}\right ) \, dx \\ & = 30 x+x^2+8 \int \frac {1}{x \left (-4 i \pi +e^{3 x} x\right ) \log ^2(x)} \, dx+8 \int \frac {e^{3 x} (1+3 x)}{\left (-4 i \pi +e^{3 x} x\right )^2 \log (x)} \, dx \\ & = 30 x+x^2+8 \int \left (-\frac {e^{3 x}}{\left (4 \pi +i e^{3 x} x\right )^2 \log (x)}+\frac {3 e^{3 x} x}{\left (-4 i \pi +e^{3 x} x\right )^2 \log (x)}\right ) \, dx+8 \int \frac {1}{x \left (-4 i \pi +e^{3 x} x\right ) \log ^2(x)} \, dx \\ & = 30 x+x^2+8 \int \frac {1}{x \left (-4 i \pi +e^{3 x} x\right ) \log ^2(x)} \, dx-8 \int \frac {e^{3 x}}{\left (4 \pi +i e^{3 x} x\right )^2 \log (x)} \, dx+24 \int \frac {e^{3 x} x}{\left (-4 i \pi +e^{3 x} x\right )^2 \log (x)} \, dx \\ \end{align*}
Time = 0.33 (sec) , antiderivative size = 37, normalized size of antiderivative = 1.23 \[ \int \frac {-32 i \pi +8 e^{3 x} x+e^{3 x} \left (8 x+24 x^2\right ) \log (x)+\left (-\pi ^2 \left (480 x+32 x^2\right )+i e^{3 x} \pi \left (-240 x^2-16 x^3\right )+e^{6 x} \left (30 x^3+2 x^4\right )\right ) \log ^2(x)}{\left (-16 \pi ^2 x-8 i e^{3 x} \pi x^2+e^{6 x} x^3\right ) \log ^2(x)} \, dx=2 \left (15 x+\frac {x^2}{2}-\frac {4 i}{\left (4 \pi +i e^{3 x} x\right ) \log (x)}\right ) \]
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Time = 1.90 (sec) , antiderivative size = 29, normalized size of antiderivative = 0.97
method | result | size |
risch | \(x^{2}+30 x -\frac {8 i}{\left (i x \,{\mathrm e}^{3 x}+4 \pi \right ) \ln \left (x \right )}\) | \(29\) |
parallelrisch | \(\frac {i \ln \left (x \right ) {\mathrm e}^{3 x} x^{3}+30 i \ln \left (x \right ) {\mathrm e}^{3 x} x^{2}+4 \pi \ln \left (x \right ) x^{2}+120 \pi \ln \left (x \right ) x -8 i}{\left (i x \,{\mathrm e}^{3 x}+4 \pi \right ) \ln \left (x \right )}\) | \(61\) |
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Time = 0.26 (sec) , antiderivative size = 47, normalized size of antiderivative = 1.57 \[ \int \frac {-32 i \pi +8 e^{3 x} x+e^{3 x} \left (8 x+24 x^2\right ) \log (x)+\left (-\pi ^2 \left (480 x+32 x^2\right )+i e^{3 x} \pi \left (-240 x^2-16 x^3\right )+e^{6 x} \left (30 x^3+2 x^4\right )\right ) \log ^2(x)}{\left (-16 \pi ^2 x-8 i e^{3 x} \pi x^2+e^{6 x} x^3\right ) \log ^2(x)} \, dx=\frac {{\left (-4 i \, \pi x^{2} - 120 i \, \pi x + {\left (x^{3} + 30 \, x^{2}\right )} e^{\left (3 \, x\right )}\right )} \log \left (x\right ) - 8}{{\left (-4 i \, \pi + x e^{\left (3 \, x\right )}\right )} \log \left (x\right )} \]
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Time = 0.16 (sec) , antiderivative size = 26, normalized size of antiderivative = 0.87 \[ \int \frac {-32 i \pi +8 e^{3 x} x+e^{3 x} \left (8 x+24 x^2\right ) \log (x)+\left (-\pi ^2 \left (480 x+32 x^2\right )+i e^{3 x} \pi \left (-240 x^2-16 x^3\right )+e^{6 x} \left (30 x^3+2 x^4\right )\right ) \log ^2(x)}{\left (-16 \pi ^2 x-8 i e^{3 x} \pi x^2+e^{6 x} x^3\right ) \log ^2(x)} \, dx=x^{2} + 30 x - \frac {8}{x e^{3 x} \log {\left (x \right )} - 4 i \pi \log {\left (x \right )}} \]
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Time = 0.24 (sec) , antiderivative size = 50, normalized size of antiderivative = 1.67 \[ \int \frac {-32 i \pi +8 e^{3 x} x+e^{3 x} \left (8 x+24 x^2\right ) \log (x)+\left (-\pi ^2 \left (480 x+32 x^2\right )+i e^{3 x} \pi \left (-240 x^2-16 x^3\right )+e^{6 x} \left (30 x^3+2 x^4\right )\right ) \log ^2(x)}{\left (-16 \pi ^2 x-8 i e^{3 x} \pi x^2+e^{6 x} x^3\right ) \log ^2(x)} \, dx=\frac {{\left (x^{3} + 30 \, x^{2}\right )} e^{\left (3 \, x\right )} \log \left (x\right ) - 4 \, {\left (i \, \pi x^{2} + 30 i \, \pi x\right )} \log \left (x\right ) - 8}{x e^{\left (3 \, x\right )} \log \left (x\right ) - 4 i \, \pi \log \left (x\right )} \]
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Both result and optimal contain complex but leaf count of result is larger than twice the leaf count of optimal. 57 vs. \(2 (25) = 50\).
Time = 0.31 (sec) , antiderivative size = 57, normalized size of antiderivative = 1.90 \[ \int \frac {-32 i \pi +8 e^{3 x} x+e^{3 x} \left (8 x+24 x^2\right ) \log (x)+\left (-\pi ^2 \left (480 x+32 x^2\right )+i e^{3 x} \pi \left (-240 x^2-16 x^3\right )+e^{6 x} \left (30 x^3+2 x^4\right )\right ) \log ^2(x)}{\left (-16 \pi ^2 x-8 i e^{3 x} \pi x^2+e^{6 x} x^3\right ) \log ^2(x)} \, dx=-\frac {2 \, {\left (-i \, x^{3} e^{\left (3 \, x\right )} \log \left (x\right ) - 4 \, \pi x^{2} \log \left (x\right ) - 30 i \, x^{2} e^{\left (3 \, x\right )} \log \left (x\right ) - 120 \, \pi x \log \left (x\right ) + 8 i\right )}}{2 i \, x e^{\left (3 \, x\right )} \log \left (x\right ) + 8 \, \pi \log \left (x\right )} \]
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Time = 8.35 (sec) , antiderivative size = 27, normalized size of antiderivative = 0.90 \[ \int \frac {-32 i \pi +8 e^{3 x} x+e^{3 x} \left (8 x+24 x^2\right ) \log (x)+\left (-\pi ^2 \left (480 x+32 x^2\right )+i e^{3 x} \pi \left (-240 x^2-16 x^3\right )+e^{6 x} \left (30 x^3+2 x^4\right )\right ) \log ^2(x)}{\left (-16 \pi ^2 x-8 i e^{3 x} \pi x^2+e^{6 x} x^3\right ) \log ^2(x)} \, dx=30\,x+\frac {8}{\ln \left (x\right )\,\left (-x\,{\mathrm {e}}^{3\,x}+\Pi \,4{}\mathrm {i}\right )}+x^2 \]
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