Integrand size = 9, antiderivative size = 32 \[ \int f^{a+b x^3} \, dx=-\frac {f^a x \Gamma \left (\frac {1}{3},-b x^3 \log (f)\right )}{3 \sqrt [3]{-b x^3 \log (f)}} \]
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Time = 0.00 (sec) , antiderivative size = 32, normalized size of antiderivative = 1.00, number of steps used = 1, number of rules used = 1, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.111, Rules used = {2239} \[ \int f^{a+b x^3} \, dx=-\frac {x f^a \Gamma \left (\frac {1}{3},-b x^3 \log (f)\right )}{3 \sqrt [3]{-b x^3 \log (f)}} \]
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Rule 2239
Rubi steps \begin{align*} \text {integral}& = -\frac {f^a x \Gamma \left (\frac {1}{3},-b x^3 \log (f)\right )}{3 \sqrt [3]{-b x^3 \log (f)}} \\ \end{align*}
Time = 0.05 (sec) , antiderivative size = 32, normalized size of antiderivative = 1.00 \[ \int f^{a+b x^3} \, dx=-\frac {f^a x \Gamma \left (\frac {1}{3},-b x^3 \log (f)\right )}{3 \sqrt [3]{-b x^3 \log (f)}} \]
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Leaf count of result is larger than twice the leaf count of optimal. \(77\) vs. \(2(26)=52\).
Time = 0.02 (sec) , antiderivative size = 78, normalized size of antiderivative = 2.44
method | result | size |
meijerg | \(\frac {f^{a} \left (\frac {2 x \left (-b \right )^{\frac {1}{3}} \ln \left (f \right )^{\frac {1}{3}} \pi \sqrt {3}}{3 \Gamma \left (\frac {2}{3}\right ) \left (-b \,x^{3} \ln \left (f \right )\right )^{\frac {1}{3}}}-\frac {x \left (-b \right )^{\frac {1}{3}} \ln \left (f \right )^{\frac {1}{3}} \Gamma \left (\frac {1}{3}, -b \,x^{3} \ln \left (f \right )\right )}{\left (-b \,x^{3} \ln \left (f \right )\right )^{\frac {1}{3}}}\right )}{3 \left (-b \right )^{\frac {1}{3}} \ln \left (f \right )^{\frac {1}{3}}}\) | \(78\) |
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none
Time = 0.08 (sec) , antiderivative size = 29, normalized size of antiderivative = 0.91 \[ \int f^{a+b x^3} \, dx=\frac {\left (-b \log \left (f\right )\right )^{\frac {2}{3}} f^{a} \Gamma \left (\frac {1}{3}, -b x^{3} \log \left (f\right )\right )}{3 \, b \log \left (f\right )} \]
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\[ \int f^{a+b x^3} \, dx=\int f^{a + b x^{3}}\, dx \]
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none
Time = 0.07 (sec) , antiderivative size = 26, normalized size of antiderivative = 0.81 \[ \int f^{a+b x^3} \, dx=-\frac {f^{a} x \Gamma \left (\frac {1}{3}, -b x^{3} \log \left (f\right )\right )}{3 \, \left (-b x^{3} \log \left (f\right )\right )^{\frac {1}{3}}} \]
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\[ \int f^{a+b x^3} \, dx=\int { f^{b x^{3} + a} \,d x } \]
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Timed out. \[ \int f^{a+b x^3} \, dx=\int f^{b\,x^3+a} \,d x \]
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