Integrand size = 39, antiderivative size = 18 \[ \int \frac {e^{8-2 e^{e^{1+x}}-\frac {6}{x^2}} \left (12-2 e^{1+e^{1+x}+x} x^3\right )}{x^3} \, dx=e^{8-2 e^{e^{1+x}}-\frac {6}{x^2}} \]
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Time = 0.27 (sec) , antiderivative size = 18, normalized size of antiderivative = 1.00, number of steps used = 1, number of rules used = 1, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.026, Rules used = {6838} \[ \int \frac {e^{8-2 e^{e^{1+x}}-\frac {6}{x^2}} \left (12-2 e^{1+e^{1+x}+x} x^3\right )}{x^3} \, dx=e^{-\frac {6}{x^2}-2 e^{e^{x+1}}+8} \]
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Rule 6838
Rubi steps \begin{align*} \text {integral}& = e^{8-2 e^{e^{1+x}}-\frac {6}{x^2}} \\ \end{align*}
Time = 0.17 (sec) , antiderivative size = 18, normalized size of antiderivative = 1.00 \[ \int \frac {e^{8-2 e^{e^{1+x}}-\frac {6}{x^2}} \left (12-2 e^{1+e^{1+x}+x} x^3\right )}{x^3} \, dx=e^{8-2 e^{e^{1+x}}-\frac {6}{x^2}} \]
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Time = 3.72 (sec) , antiderivative size = 23, normalized size of antiderivative = 1.28
method | result | size |
risch | \({\mathrm e}^{-\frac {2 \left ({\mathrm e}^{{\mathrm e}^{1+x}} x^{2}-4 x^{2}+3\right )}{x^{2}}}\) | \(23\) |
parallelrisch | \({\mathrm e}^{-2 \,{\mathrm e}^{{\mathrm e}^{1+x}}+12} {\mathrm e}^{-4} {\mathrm e}^{-\frac {6}{x^{2}}}\) | \(26\) |
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Leaf count of result is larger than twice the leaf count of optimal. 38 vs. \(2 (15) = 30\).
Time = 0.27 (sec) , antiderivative size = 38, normalized size of antiderivative = 2.11 \[ \int \frac {e^{8-2 e^{e^{1+x}}-\frac {6}{x^2}} \left (12-2 e^{1+e^{1+x}+x} x^3\right )}{x^3} \, dx=e^{\left (-\frac {2 \, {\left (x^{2} e^{\left (x + e^{\left (x + 1\right )} + 1\right )} - {\left (4 \, x^{2} - 3\right )} e^{\left (x + 1\right )}\right )} e^{\left (-x - 1\right )}}{x^{2}}\right )} \]
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Timed out. \[ \int \frac {e^{8-2 e^{e^{1+x}}-\frac {6}{x^2}} \left (12-2 e^{1+e^{1+x}+x} x^3\right )}{x^3} \, dx=\text {Timed out} \]
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none
Time = 0.29 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.83 \[ \int \frac {e^{8-2 e^{e^{1+x}}-\frac {6}{x^2}} \left (12-2 e^{1+e^{1+x}+x} x^3\right )}{x^3} \, dx=e^{\left (-\frac {6}{x^{2}} - 2 \, e^{\left (e^{\left (x + 1\right )}\right )} + 8\right )} \]
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none
Time = 0.29 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.83 \[ \int \frac {e^{8-2 e^{e^{1+x}}-\frac {6}{x^2}} \left (12-2 e^{1+e^{1+x}+x} x^3\right )}{x^3} \, dx=e^{\left (-\frac {6}{x^{2}} - 2 \, e^{\left (e^{\left (x + 1\right )}\right )} + 8\right )} \]
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Time = 14.05 (sec) , antiderivative size = 18, normalized size of antiderivative = 1.00 \[ \int \frac {e^{8-2 e^{e^{1+x}}-\frac {6}{x^2}} \left (12-2 e^{1+e^{1+x}+x} x^3\right )}{x^3} \, dx={\mathrm {e}}^8\,{\mathrm {e}}^{-\frac {6}{x^2}}\,{\mathrm {e}}^{-2\,{\mathrm {e}}^{\mathrm {e}\,{\mathrm {e}}^x}} \]
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