Integrand size = 29, antiderivative size = 22 \[ \int \frac {6561+e^{4-24 x+\frac {x^2}{13122}} \left (6561-157464 x+x^2\right )}{6561} \, dx=5+x+e^{4 (1-6 x)+\frac {x^2}{13122}} x \]
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Time = 0.02 (sec) , antiderivative size = 33, normalized size of antiderivative = 1.50, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.069, Rules used = {12, 2326} \[ \int \frac {6561+e^{4-24 x+\frac {x^2}{13122}} \left (6561-157464 x+x^2\right )}{6561} \, dx=\frac {e^{\frac {x^2}{13122}-24 x+4} \left (157464 x-x^2\right )}{157464-x}+x \]
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Rule 12
Rule 2326
Rubi steps \begin{align*} \text {integral}& = \frac {\int \left (6561+e^{4-24 x+\frac {x^2}{13122}} \left (6561-157464 x+x^2\right )\right ) \, dx}{6561} \\ & = x+\frac {\int e^{4-24 x+\frac {x^2}{13122}} \left (6561-157464 x+x^2\right ) \, dx}{6561} \\ & = x+\frac {e^{4-24 x+\frac {x^2}{13122}} \left (157464 x-x^2\right )}{157464-x} \\ \end{align*}
Time = 0.41 (sec) , antiderivative size = 18, normalized size of antiderivative = 0.82 \[ \int \frac {6561+e^{4-24 x+\frac {x^2}{13122}} \left (6561-157464 x+x^2\right )}{6561} \, dx=\left (1+e^{4-24 x+\frac {x^2}{13122}}\right ) x \]
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Time = 0.07 (sec) , antiderivative size = 16, normalized size of antiderivative = 0.73
method | result | size |
risch | \(x +x \,{\mathrm e}^{\frac {1}{13122} x^{2}-24 x +4}\) | \(16\) |
norman | \(x +{\mathrm e}^{\frac {x^{2}}{13122}} {\mathrm e}^{-24 x +4} x\) | \(17\) |
parallelrisch | \(x +{\mathrm e}^{\frac {x^{2}}{13122}} {\mathrm e}^{-24 x +4} x\) | \(17\) |
default | \(x +\frac {{\mathrm e}^{4} \left (6561 x \,{\mathrm e}^{-24 x +\frac {1}{13122} x^{2}}+1033121304 \,{\mathrm e}^{-24 x +\frac {1}{13122} x^{2}}-\frac {2008387283535 i \sqrt {\pi }\, {\mathrm e}^{-1889568} \sqrt {2}\, \operatorname {erf}\left (\frac {i \sqrt {2}\, x}{162}-972 i \sqrt {2}\right )}{2}\right )}{6561}-\frac {81 i {\mathrm e}^{4} \sqrt {\pi }\, {\mathrm e}^{-1889568} \sqrt {2}\, \operatorname {erf}\left (\frac {i \sqrt {2}\, x}{162}-972 i \sqrt {2}\right )}{2}-24 \,{\mathrm e}^{4} \left (6561 \,{\mathrm e}^{-24 x +\frac {1}{13122} x^{2}}-6377292 i \sqrt {\pi }\, {\mathrm e}^{-1889568} \sqrt {2}\, \operatorname {erf}\left (\frac {i \sqrt {2}\, x}{162}-972 i \sqrt {2}\right )\right )\) | \(130\) |
parts | \(x +\frac {{\mathrm e}^{4} \left (6561 x \,{\mathrm e}^{-24 x +\frac {1}{13122} x^{2}}+1033121304 \,{\mathrm e}^{-24 x +\frac {1}{13122} x^{2}}-\frac {2008387283535 i \sqrt {\pi }\, {\mathrm e}^{-1889568} \sqrt {2}\, \operatorname {erf}\left (\frac {i \sqrt {2}\, x}{162}-972 i \sqrt {2}\right )}{2}\right )}{6561}-\frac {81 i {\mathrm e}^{4} \sqrt {\pi }\, {\mathrm e}^{-1889568} \sqrt {2}\, \operatorname {erf}\left (\frac {i \sqrt {2}\, x}{162}-972 i \sqrt {2}\right )}{2}-24 \,{\mathrm e}^{4} \left (6561 \,{\mathrm e}^{-24 x +\frac {1}{13122} x^{2}}-6377292 i \sqrt {\pi }\, {\mathrm e}^{-1889568} \sqrt {2}\, \operatorname {erf}\left (\frac {i \sqrt {2}\, x}{162}-972 i \sqrt {2}\right )\right )\) | \(130\) |
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Time = 0.26 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.68 \[ \int \frac {6561+e^{4-24 x+\frac {x^2}{13122}} \left (6561-157464 x+x^2\right )}{6561} \, dx=x e^{\left (\frac {1}{13122} \, x^{2} - 24 \, x + 4\right )} + x \]
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Time = 0.10 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.68 \[ \int \frac {6561+e^{4-24 x+\frac {x^2}{13122}} \left (6561-157464 x+x^2\right )}{6561} \, dx=x e^{\frac {x^{2}}{13122}} e^{4 - 24 x} + x \]
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Result contains higher order function than in optimal. Order 4 vs. order 3.
Time = 0.31 (sec) , antiderivative size = 158, normalized size of antiderivative = 7.18 \[ \int \frac {6561+e^{4-24 x+\frac {x^2}{13122}} \left (6561-157464 x+x^2\right )}{6561} \, dx=-\frac {81}{2} i \, \sqrt {2} \sqrt {\pi } \operatorname {erf}\left (\frac {1}{162} i \, \sqrt {2} x - 972 i \, \sqrt {2}\right ) e^{\left (-1889564\right )} - 81 \, \sqrt {2} {\left (\frac {{\left (x - 157464\right )}^{3} \Gamma \left (\frac {3}{2}, -\frac {1}{13122} \, {\left (x - 157464\right )}^{2}\right )}{\left (-{\left (x - 157464\right )}^{2}\right )^{\frac {3}{2}}} - \frac {1889568 \, \sqrt {\pi } {\left (x - 157464\right )} {\left (\operatorname {erf}\left (\frac {1}{81} \, \sqrt {\frac {1}{2}} \sqrt {-{\left (x - 157464\right )}^{2}}\right ) - 1\right )}}{\sqrt {-{\left (x - 157464\right )}^{2}}} - 1944 \, \sqrt {2} e^{\left (\frac {1}{13122} \, {\left (x - 157464\right )}^{2}\right )}\right )} e^{\left (-1889564\right )} - 78732 \, \sqrt {2} {\left (\frac {1944 \, \sqrt {\pi } {\left (x - 157464\right )} {\left (\operatorname {erf}\left (\frac {1}{81} \, \sqrt {\frac {1}{2}} \sqrt {-{\left (x - 157464\right )}^{2}}\right ) - 1\right )}}{\sqrt {-{\left (x - 157464\right )}^{2}}} + \sqrt {2} e^{\left (\frac {1}{13122} \, {\left (x - 157464\right )}^{2}\right )}\right )} e^{\left (-1889564\right )} + x \]
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Time = 0.26 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.68 \[ \int \frac {6561+e^{4-24 x+\frac {x^2}{13122}} \left (6561-157464 x+x^2\right )}{6561} \, dx=x e^{\left (\frac {1}{13122} \, x^{2} - 24 \, x + 4\right )} + x \]
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Time = 0.11 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.68 \[ \int \frac {6561+e^{4-24 x+\frac {x^2}{13122}} \left (6561-157464 x+x^2\right )}{6561} \, dx=x\,\left ({\mathrm {e}}^{\frac {x^2}{13122}-24\,x+4}+1\right ) \]
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