Integrand size = 27, antiderivative size = 21 \[ \int \frac {-6+\frac {1}{2} e^{2 x} (1-2 x)+e^x (-1+x)}{x^2} \, dx=\frac {6+e^x-\frac {e^{2 x}}{2}-4 x}{x} \]
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Time = 0.04 (sec) , antiderivative size = 25, normalized size of antiderivative = 1.19, number of steps used = 4, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.074, Rules used = {14, 2228} \[ \int \frac {-6+\frac {1}{2} e^{2 x} (1-2 x)+e^x (-1+x)}{x^2} \, dx=\frac {e^x}{x}-\frac {e^{2 x}}{2 x}+\frac {6}{x} \]
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Rule 14
Rule 2228
Rubi steps \begin{align*} \text {integral}& = \int \left (-\frac {6}{x^2}+\frac {e^x (-1+x)}{x^2}-\frac {e^{2 x} (-1+2 x)}{2 x^2}\right ) \, dx \\ & = \frac {6}{x}-\frac {1}{2} \int \frac {e^{2 x} (-1+2 x)}{x^2} \, dx+\int \frac {e^x (-1+x)}{x^2} \, dx \\ & = \frac {6}{x}+\frac {e^x}{x}-\frac {e^{2 x}}{2 x} \\ \end{align*}
Time = 0.13 (sec) , antiderivative size = 21, normalized size of antiderivative = 1.00 \[ \int \frac {-6+\frac {1}{2} e^{2 x} (1-2 x)+e^x (-1+x)}{x^2} \, dx=\frac {12+2 e^x-e^{2 x}}{2 x} \]
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Time = 0.07 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.71
method | result | size |
norman | \(\frac {6-\frac {{\mathrm e}^{2 x}}{2}+{\mathrm e}^{x}}{x}\) | \(15\) |
parallelrisch | \(\frac {6+{\mathrm e}^{x}-{\mathrm e}^{2 x -\ln \left (2\right )}}{x}\) | \(20\) |
default | \(\frac {6}{x}+\frac {{\mathrm e}^{x}}{x}-\frac {{\mathrm e}^{2 x}}{2 x}\) | \(22\) |
risch | \(\frac {6}{x}+\frac {{\mathrm e}^{x}}{x}-\frac {{\mathrm e}^{2 x}}{2 x}\) | \(22\) |
parts | \(\frac {6}{x}+\frac {{\mathrm e}^{x}}{x}-\frac {{\mathrm e}^{2 x -\ln \left (2\right )}}{x}\) | \(27\) |
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Time = 0.24 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.71 \[ \int \frac {-6+\frac {1}{2} e^{2 x} (1-2 x)+e^x (-1+x)}{x^2} \, dx=-\frac {e^{\left (2 \, x\right )} - 2 \, e^{x} - 12}{2 \, x} \]
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Time = 0.05 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.95 \[ \int \frac {-6+\frac {1}{2} e^{2 x} (1-2 x)+e^x (-1+x)}{x^2} \, dx=\frac {6}{x} + \frac {- x e^{2 x} + 2 x e^{x}}{2 x^{2}} \]
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Result contains higher order function than in optimal. Order 4 vs. order 3.
Time = 0.25 (sec) , antiderivative size = 26, normalized size of antiderivative = 1.24 \[ \int \frac {-6+\frac {1}{2} e^{2 x} (1-2 x)+e^x (-1+x)}{x^2} \, dx=\frac {6}{x} - {\rm Ei}\left (2 \, x\right ) + {\rm Ei}\left (x\right ) - \Gamma \left (-1, -x\right ) + \Gamma \left (-1, -2 \, x\right ) \]
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Time = 0.25 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.71 \[ \int \frac {-6+\frac {1}{2} e^{2 x} (1-2 x)+e^x (-1+x)}{x^2} \, dx=-\frac {e^{\left (2 \, x\right )} - 2 \, e^{x} - 12}{2 \, x} \]
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Time = 8.96 (sec) , antiderivative size = 17, normalized size of antiderivative = 0.81 \[ \int \frac {-6+\frac {1}{2} e^{2 x} (1-2 x)+e^x (-1+x)}{x^2} \, dx=\frac {2\,{\mathrm {e}}^x-{\mathrm {e}}^{2\,x}+12}{2\,x} \]
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