Integrand size = 96, antiderivative size = 31 \[ \int \frac {e^{\frac {5+20 x^2-5 \log \left (\frac {4+e^{2 x}}{5 x^2}\right )}{x}} \left (20+80 x^2+e^{2 x} \left (5-10 x+20 x^2\right )+\left (20+5 e^{2 x}\right ) \log \left (\frac {4+e^{2 x}}{5 x^2}\right )\right )}{4 x^2+e^{2 x} x^2} \, dx=e^{\frac {5 \left (1+4 x^2-\log \left (\frac {4+e^{2 x}}{5 x^2}\right )\right )}{x}} \]
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Time = 0.82 (sec) , antiderivative size = 39, normalized size of antiderivative = 1.26, number of steps used = 1, number of rules used = 1, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.010, Rules used = {6838} \[ \int \frac {e^{\frac {5+20 x^2-5 \log \left (\frac {4+e^{2 x}}{5 x^2}\right )}{x}} \left (20+80 x^2+e^{2 x} \left (5-10 x+20 x^2\right )+\left (20+5 e^{2 x}\right ) \log \left (\frac {4+e^{2 x}}{5 x^2}\right )\right )}{4 x^2+e^{2 x} x^2} \, dx=5^{5/x} e^{\frac {5 \left (4 x^2+1\right )}{x}} \left (\frac {e^{2 x}+4}{x^2}\right )^{-5/x} \]
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Rule 6838
Rubi steps \begin{align*} \text {integral}& = 5^{5/x} e^{\frac {5 \left (1+4 x^2\right )}{x}} \left (\frac {4+e^{2 x}}{x^2}\right )^{-5/x} \\ \end{align*}
\[ \int \frac {e^{\frac {5+20 x^2-5 \log \left (\frac {4+e^{2 x}}{5 x^2}\right )}{x}} \left (20+80 x^2+e^{2 x} \left (5-10 x+20 x^2\right )+\left (20+5 e^{2 x}\right ) \log \left (\frac {4+e^{2 x}}{5 x^2}\right )\right )}{4 x^2+e^{2 x} x^2} \, dx=\int \frac {e^{\frac {5+20 x^2-5 \log \left (\frac {4+e^{2 x}}{5 x^2}\right )}{x}} \left (20+80 x^2+e^{2 x} \left (5-10 x+20 x^2\right )+\left (20+5 e^{2 x}\right ) \log \left (\frac {4+e^{2 x}}{5 x^2}\right )\right )}{4 x^2+e^{2 x} x^2} \, dx \]
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Time = 0.90 (sec) , antiderivative size = 26, normalized size of antiderivative = 0.84
method | result | size |
parallelrisch | \({\mathrm e}^{-\frac {5 \left (-4 x^{2}+\ln \left (\frac {{\mathrm e}^{2 x}+4}{5 x^{2}}\right )-1\right )}{x}}\) | \(26\) |
risch | \(x^{\frac {10}{x}} 3125^{\frac {1}{x}} \left ({\mathrm e}^{2 x}+4\right )^{-\frac {5}{x}} {\mathrm e}^{\frac {-\frac {5 i \pi \,\operatorname {csgn}\left (i \left ({\mathrm e}^{2 x}+4\right )\right ) {\operatorname {csgn}\left (\frac {i \left ({\mathrm e}^{2 x}+4\right )}{x^{2}}\right )}^{2}}{2}+\frac {5 i \pi \,\operatorname {csgn}\left (i \left ({\mathrm e}^{2 x}+4\right )\right ) \operatorname {csgn}\left (\frac {i \left ({\mathrm e}^{2 x}+4\right )}{x^{2}}\right ) \operatorname {csgn}\left (\frac {i}{x^{2}}\right )}{2}-\frac {5 i \pi \operatorname {csgn}\left (i x^{2}\right )^{3}}{2}+5 i \pi \operatorname {csgn}\left (i x^{2}\right )^{2} \operatorname {csgn}\left (i x \right )-\frac {5 i \pi \,\operatorname {csgn}\left (i x^{2}\right ) \operatorname {csgn}\left (i x \right )^{2}}{2}+\frac {5 i \pi {\operatorname {csgn}\left (\frac {i \left ({\mathrm e}^{2 x}+4\right )}{x^{2}}\right )}^{3}}{2}-\frac {5 i \pi {\operatorname {csgn}\left (\frac {i \left ({\mathrm e}^{2 x}+4\right )}{x^{2}}\right )}^{2} \operatorname {csgn}\left (\frac {i}{x^{2}}\right )}{2}+20 x^{2}+5}{x}}\) | \(196\) |
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Time = 0.25 (sec) , antiderivative size = 27, normalized size of antiderivative = 0.87 \[ \int \frac {e^{\frac {5+20 x^2-5 \log \left (\frac {4+e^{2 x}}{5 x^2}\right )}{x}} \left (20+80 x^2+e^{2 x} \left (5-10 x+20 x^2\right )+\left (20+5 e^{2 x}\right ) \log \left (\frac {4+e^{2 x}}{5 x^2}\right )\right )}{4 x^2+e^{2 x} x^2} \, dx=e^{\left (\frac {5 \, {\left (4 \, x^{2} - \log \left (\frac {e^{\left (2 \, x\right )} + 4}{5 \, x^{2}}\right ) + 1\right )}}{x}\right )} \]
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Timed out. \[ \int \frac {e^{\frac {5+20 x^2-5 \log \left (\frac {4+e^{2 x}}{5 x^2}\right )}{x}} \left (20+80 x^2+e^{2 x} \left (5-10 x+20 x^2\right )+\left (20+5 e^{2 x}\right ) \log \left (\frac {4+e^{2 x}}{5 x^2}\right )\right )}{4 x^2+e^{2 x} x^2} \, dx=\text {Timed out} \]
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Time = 0.38 (sec) , antiderivative size = 36, normalized size of antiderivative = 1.16 \[ \int \frac {e^{\frac {5+20 x^2-5 \log \left (\frac {4+e^{2 x}}{5 x^2}\right )}{x}} \left (20+80 x^2+e^{2 x} \left (5-10 x+20 x^2\right )+\left (20+5 e^{2 x}\right ) \log \left (\frac {4+e^{2 x}}{5 x^2}\right )\right )}{4 x^2+e^{2 x} x^2} \, dx=e^{\left (20 \, x + \frac {5 \, \log \left (5\right )}{x} + \frac {10 \, \log \left (x\right )}{x} - \frac {5 \, \log \left (e^{\left (2 \, x\right )} + 4\right )}{x} + \frac {5}{x}\right )} \]
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Time = 0.53 (sec) , antiderivative size = 31, normalized size of antiderivative = 1.00 \[ \int \frac {e^{\frac {5+20 x^2-5 \log \left (\frac {4+e^{2 x}}{5 x^2}\right )}{x}} \left (20+80 x^2+e^{2 x} \left (5-10 x+20 x^2\right )+\left (20+5 e^{2 x}\right ) \log \left (\frac {4+e^{2 x}}{5 x^2}\right )\right )}{4 x^2+e^{2 x} x^2} \, dx=e^{\left (20 \, x - \frac {5 \, \log \left (\frac {e^{\left (2 \, x\right )}}{5 \, x^{2}} + \frac {4}{5 \, x^{2}}\right )}{x} + \frac {5}{x}\right )} \]
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Time = 7.84 (sec) , antiderivative size = 28, normalized size of antiderivative = 0.90 \[ \int \frac {e^{\frac {5+20 x^2-5 \log \left (\frac {4+e^{2 x}}{5 x^2}\right )}{x}} \left (20+80 x^2+e^{2 x} \left (5-10 x+20 x^2\right )+\left (20+5 e^{2 x}\right ) \log \left (\frac {4+e^{2 x}}{5 x^2}\right )\right )}{4 x^2+e^{2 x} x^2} \, dx={\mathrm {e}}^{20\,x+\frac {5}{x}}\,{\left (\frac {3125\,x^{10}}{{\left ({\mathrm {e}}^{2\,x}+4\right )}^5}\right )}^{1/x} \]
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