Integrand size = 28, antiderivative size = 26 \[ \int \frac {e^{\left .\frac {1}{3}\right /x} (-4-13 x)+9 x^3}{3 x^3} \, dx=-7+3 x-\frac {x-e^{\left .\frac {1}{3}\right /x} (4+x)}{x} \]
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Time = 0.08 (sec) , antiderivative size = 27, normalized size of antiderivative = 1.04, number of steps used = 8, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.179, Rules used = {12, 14, 6874, 2243, 2240} \[ \int \frac {e^{\left .\frac {1}{3}\right /x} (-4-13 x)+9 x^3}{3 x^3} \, dx=3 x+e^{\left .\frac {1}{3}\right /x}+\frac {4 e^{\left .\frac {1}{3}\right /x}}{x} \]
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Rule 12
Rule 14
Rule 2240
Rule 2243
Rule 6874
Rubi steps \begin{align*} \text {integral}& = \frac {1}{3} \int \frac {e^{\left .\frac {1}{3}\right /x} (-4-13 x)+9 x^3}{x^3} \, dx \\ & = \frac {1}{3} \int \left (9-\frac {e^{\left .\frac {1}{3}\right /x} (4+13 x)}{x^3}\right ) \, dx \\ & = 3 x-\frac {1}{3} \int \frac {e^{\left .\frac {1}{3}\right /x} (4+13 x)}{x^3} \, dx \\ & = 3 x-\frac {1}{3} \int \left (\frac {4 e^{\left .\frac {1}{3}\right /x}}{x^3}+\frac {13 e^{\left .\frac {1}{3}\right /x}}{x^2}\right ) \, dx \\ & = 3 x-\frac {4}{3} \int \frac {e^{\left .\frac {1}{3}\right /x}}{x^3} \, dx-\frac {13}{3} \int \frac {e^{\left .\frac {1}{3}\right /x}}{x^2} \, dx \\ & = 13 e^{\left .\frac {1}{3}\right /x}+\frac {4 e^{\left .\frac {1}{3}\right /x}}{x}+3 x+4 \int \frac {e^{\left .\frac {1}{3}\right /x}}{x^2} \, dx \\ & = e^{\left .\frac {1}{3}\right /x}+\frac {4 e^{\left .\frac {1}{3}\right /x}}{x}+3 x \\ \end{align*}
Time = 0.03 (sec) , antiderivative size = 27, normalized size of antiderivative = 1.04 \[ \int \frac {e^{\left .\frac {1}{3}\right /x} (-4-13 x)+9 x^3}{3 x^3} \, dx=e^{\left .\frac {1}{3}\right /x}+\frac {4 e^{\left .\frac {1}{3}\right /x}}{x}+3 x \]
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Time = 0.23 (sec) , antiderivative size = 18, normalized size of antiderivative = 0.69
method | result | size |
risch | \(3 x +\frac {\left (4+x \right ) {\mathrm e}^{\frac {1}{3 x}}}{x}\) | \(18\) |
derivativedivides | \(3 x +\frac {4 \,{\mathrm e}^{\frac {1}{3 x}}}{x}+{\mathrm e}^{\frac {1}{3 x}}\) | \(22\) |
default | \(3 x +\frac {4 \,{\mathrm e}^{\frac {1}{3 x}}}{x}+{\mathrm e}^{\frac {1}{3 x}}\) | \(22\) |
parts | \(3 x +\frac {4 \,{\mathrm e}^{\frac {1}{3 x}}}{x}+{\mathrm e}^{\frac {1}{3 x}}\) | \(22\) |
parallelrisch | \(\frac {9 x^{2}+3 \,{\mathrm e}^{\frac {1}{3 x}} x +12 \,{\mathrm e}^{\frac {1}{3 x}}}{3 x}\) | \(29\) |
norman | \(\frac {x^{2} {\mathrm e}^{\frac {1}{3 x}}+3 x^{3}+4 \,{\mathrm e}^{\frac {1}{3 x}} x}{x^{2}}\) | \(30\) |
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Time = 0.24 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.77 \[ \int \frac {e^{\left .\frac {1}{3}\right /x} (-4-13 x)+9 x^3}{3 x^3} \, dx=\frac {3 \, x^{2} + {\left (x + 4\right )} e^{\left (\frac {1}{3 \, x}\right )}}{x} \]
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Time = 0.06 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.54 \[ \int \frac {e^{\left .\frac {1}{3}\right /x} (-4-13 x)+9 x^3}{3 x^3} \, dx=3 x + \frac {\left (x + 4\right ) e^{\frac {1}{3 x}}}{x} \]
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Result contains higher order function than in optimal. Order 4 vs. order 3.
Time = 0.24 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.81 \[ \int \frac {e^{\left .\frac {1}{3}\right /x} (-4-13 x)+9 x^3}{3 x^3} \, dx=3 \, x + 13 \, e^{\left (\frac {1}{3 \, x}\right )} - 12 \, \Gamma \left (2, -\frac {1}{3 \, x}\right ) \]
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Time = 0.27 (sec) , antiderivative size = 25, normalized size of antiderivative = 0.96 \[ \int \frac {e^{\left .\frac {1}{3}\right /x} (-4-13 x)+9 x^3}{3 x^3} \, dx=x {\left (\frac {e^{\left (\frac {1}{3 \, x}\right )}}{x} + \frac {4 \, e^{\left (\frac {1}{3 \, x}\right )}}{x^{2}} + 3\right )} \]
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Time = 12.98 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.81 \[ \int \frac {e^{\left .\frac {1}{3}\right /x} (-4-13 x)+9 x^3}{3 x^3} \, dx=3\,x+{\mathrm {e}}^{\frac {1}{3\,x}}+\frac {4\,{\mathrm {e}}^{\frac {1}{3\,x}}}{x} \]
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