Integrand size = 27, antiderivative size = 22 \[ \int \frac {-13 x-6 x^2+e^{\frac {1}{x}} (-4+4 x)}{3 x} \, dx=7+x+\left (\frac {4}{3} \left (-4+e^{\frac {1}{x}}\right )-x\right ) x+\log (5) \]
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Time = 0.03 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.95, number of steps used = 4, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.111, Rules used = {12, 14, 2326} \[ \int \frac {-13 x-6 x^2+e^{\frac {1}{x}} (-4+4 x)}{3 x} \, dx=-x^2+\frac {4}{3} e^{\frac {1}{x}} x-\frac {13 x}{3} \]
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Rule 12
Rule 14
Rule 2326
Rubi steps \begin{align*} \text {integral}& = \frac {1}{3} \int \frac {-13 x-6 x^2+e^{\frac {1}{x}} (-4+4 x)}{x} \, dx \\ & = \frac {1}{3} \int \left (-13+\frac {4 e^{\frac {1}{x}} (-1+x)}{x}-6 x\right ) \, dx \\ & = -\frac {13 x}{3}-x^2+\frac {4}{3} \int \frac {e^{\frac {1}{x}} (-1+x)}{x} \, dx \\ & = -\frac {13 x}{3}+\frac {4}{3} e^{\frac {1}{x}} x-x^2 \\ \end{align*}
Time = 0.02 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.95 \[ \int \frac {-13 x-6 x^2+e^{\frac {1}{x}} (-4+4 x)}{3 x} \, dx=\frac {1}{3} \left (-13 x+4 e^{\frac {1}{x}} x-3 x^2\right ) \]
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Time = 0.21 (sec) , antiderivative size = 17, normalized size of antiderivative = 0.77
method | result | size |
derivativedivides | \(-x^{2}-\frac {13 x}{3}+\frac {4 x \,{\mathrm e}^{\frac {1}{x}}}{3}\) | \(17\) |
default | \(-x^{2}-\frac {13 x}{3}+\frac {4 x \,{\mathrm e}^{\frac {1}{x}}}{3}\) | \(17\) |
norman | \(-x^{2}-\frac {13 x}{3}+\frac {4 x \,{\mathrm e}^{\frac {1}{x}}}{3}\) | \(17\) |
risch | \(-x^{2}-\frac {13 x}{3}+\frac {4 x \,{\mathrm e}^{\frac {1}{x}}}{3}\) | \(17\) |
parallelrisch | \(-x^{2}-\frac {13 x}{3}+\frac {4 x \,{\mathrm e}^{\frac {1}{x}}}{3}\) | \(17\) |
parts | \(-x^{2}-\frac {13 x}{3}+\frac {4 x \,{\mathrm e}^{\frac {1}{x}}}{3}\) | \(17\) |
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none
Time = 0.24 (sec) , antiderivative size = 16, normalized size of antiderivative = 0.73 \[ \int \frac {-13 x-6 x^2+e^{\frac {1}{x}} (-4+4 x)}{3 x} \, dx=-x^{2} + \frac {4}{3} \, x e^{\frac {1}{x}} - \frac {13}{3} \, x \]
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Time = 0.07 (sec) , antiderivative size = 17, normalized size of antiderivative = 0.77 \[ \int \frac {-13 x-6 x^2+e^{\frac {1}{x}} (-4+4 x)}{3 x} \, dx=- x^{2} + \frac {4 x e^{\frac {1}{x}}}{3} - \frac {13 x}{3} \]
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Result contains higher order function than in optimal. Order 4 vs. order 3.
Time = 0.22 (sec) , antiderivative size = 24, normalized size of antiderivative = 1.09 \[ \int \frac {-13 x-6 x^2+e^{\frac {1}{x}} (-4+4 x)}{3 x} \, dx=-x^{2} - \frac {13}{3} \, x + \frac {4}{3} \, {\rm Ei}\left (\frac {1}{x}\right ) - \frac {4}{3} \, \Gamma \left (-1, -\frac {1}{x}\right ) \]
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none
Time = 0.28 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.95 \[ \int \frac {-13 x-6 x^2+e^{\frac {1}{x}} (-4+4 x)}{3 x} \, dx=\frac {1}{3} \, x^{2} {\left (\frac {4 \, e^{\frac {1}{x}}}{x} - \frac {13}{x} - 3\right )} \]
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Time = 12.44 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.64 \[ \int \frac {-13 x-6 x^2+e^{\frac {1}{x}} (-4+4 x)}{3 x} \, dx=-\frac {x\,\left (3\,x-4\,{\mathrm {e}}^{1/x}+13\right )}{3} \]
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