Integrand size = 23, antiderivative size = 25 \[ \int \frac {2+4 e^e+e^x (1-x)}{5 x^2} \, dx=\frac {1}{5} \left (4+\frac {-2-4 e^e-e^x-x}{x}\right ) \]
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Time = 0.03 (sec) , antiderivative size = 25, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.130, Rules used = {12, 14, 2228} \[ \int \frac {2+4 e^e+e^x (1-x)}{5 x^2} \, dx=-\frac {e^x}{5 x}-\frac {2 \left (1+2 e^e\right )}{5 x} \]
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Rule 12
Rule 14
Rule 2228
Rubi steps \begin{align*} \text {integral}& = \frac {1}{5} \int \frac {2+4 e^e+e^x (1-x)}{x^2} \, dx \\ & = \frac {1}{5} \int \left (\frac {2 \left (1+2 e^e\right )}{x^2}-\frac {e^x (-1+x)}{x^2}\right ) \, dx \\ & = -\frac {2 \left (1+2 e^e\right )}{5 x}-\frac {1}{5} \int \frac {e^x (-1+x)}{x^2} \, dx \\ & = -\frac {e^x}{5 x}-\frac {2 \left (1+2 e^e\right )}{5 x} \\ \end{align*}
Time = 0.07 (sec) , antiderivative size = 17, normalized size of antiderivative = 0.68 \[ \int \frac {2+4 e^e+e^x (1-x)}{5 x^2} \, dx=-\frac {2+4 e^e+e^x}{5 x} \]
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Time = 0.04 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.60
method | result | size |
parallelrisch | \(-\frac {4 \,{\mathrm e}^{{\mathrm e}}+2+{\mathrm e}^{x}}{5 x}\) | \(15\) |
norman | \(\frac {-\frac {{\mathrm e}^{x}}{5}-\frac {4 \,{\mathrm e}^{{\mathrm e}}}{5}-\frac {2}{5}}{x}\) | \(16\) |
parts | \(-\frac {\frac {4 \,{\mathrm e}^{{\mathrm e}}}{5}+\frac {2}{5}}{x}-\frac {{\mathrm e}^{x}}{5 x}\) | \(21\) |
default | \(-\frac {{\mathrm e}^{x}}{5 x}-\frac {2}{5 x}-\frac {4 \,{\mathrm e}^{{\mathrm e}}}{5 x}\) | \(22\) |
risch | \(-\frac {{\mathrm e}^{x}}{5 x}-\frac {2}{5 x}-\frac {4 \,{\mathrm e}^{{\mathrm e}}}{5 x}\) | \(22\) |
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none
Time = 0.24 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.56 \[ \int \frac {2+4 e^e+e^x (1-x)}{5 x^2} \, dx=-\frac {e^{x} + 4 \, e^{e} + 2}{5 \, x} \]
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Time = 0.06 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.80 \[ \int \frac {2+4 e^e+e^x (1-x)}{5 x^2} \, dx=- \frac {e^{x}}{5 x} - \frac {\frac {2}{5} + \frac {4 e^{e}}{5}}{x} \]
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Result contains higher order function than in optimal. Order 4 vs. order 3.
Time = 0.22 (sec) , antiderivative size = 25, normalized size of antiderivative = 1.00 \[ \int \frac {2+4 e^e+e^x (1-x)}{5 x^2} \, dx=-\frac {4 \, e^{e}}{5 \, x} - \frac {2}{5 \, x} - \frac {1}{5} \, {\rm Ei}\left (x\right ) + \frac {1}{5} \, \Gamma \left (-1, -x\right ) \]
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none
Time = 0.25 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.56 \[ \int \frac {2+4 e^e+e^x (1-x)}{5 x^2} \, dx=-\frac {e^{x} + 4 \, e^{e} + 2}{5 \, x} \]
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Time = 0.07 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.56 \[ \int \frac {2+4 e^e+e^x (1-x)}{5 x^2} \, dx=-\frac {4\,{\mathrm {e}}^{\mathrm {e}}+{\mathrm {e}}^x+2}{5\,x} \]
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