Integrand size = 18, antiderivative size = 89 \[ \int \frac {\left (-1+x^3\right ) \sqrt [3]{1+x^3}}{x} \, dx=\frac {1}{4} \left (-3+x^3\right ) \sqrt [3]{1+x^3}+\frac {\arctan \left (\frac {1}{\sqrt {3}}+\frac {2 \sqrt [3]{1+x^3}}{\sqrt {3}}\right )}{\sqrt {3}}-\frac {1}{3} \log \left (-1+\sqrt [3]{1+x^3}\right )+\frac {1}{6} \log \left (1+\sqrt [3]{1+x^3}+\left (1+x^3\right )^{2/3}\right ) \]
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Time = 0.07 (sec) , antiderivative size = 75, normalized size of antiderivative = 0.84, number of steps used = 7, number of rules used = 7, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.389, Rules used = {457, 81, 52, 59, 632, 210, 31} \[ \int \frac {\left (-1+x^3\right ) \sqrt [3]{1+x^3}}{x} \, dx=\frac {\arctan \left (\frac {2 \sqrt [3]{x^3+1}+1}{\sqrt {3}}\right )}{\sqrt {3}}+\frac {1}{4} \left (x^3+1\right )^{4/3}-\sqrt [3]{x^3+1}-\frac {1}{2} \log \left (1-\sqrt [3]{x^3+1}\right )+\frac {\log (x)}{2} \]
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Rule 31
Rule 52
Rule 59
Rule 81
Rule 210
Rule 457
Rule 632
Rubi steps \begin{align*} \text {integral}& = \frac {1}{3} \text {Subst}\left (\int \frac {(-1+x) \sqrt [3]{1+x}}{x} \, dx,x,x^3\right ) \\ & = \frac {1}{4} \left (1+x^3\right )^{4/3}-\frac {1}{3} \text {Subst}\left (\int \frac {\sqrt [3]{1+x}}{x} \, dx,x,x^3\right ) \\ & = -\sqrt [3]{1+x^3}+\frac {1}{4} \left (1+x^3\right )^{4/3}-\frac {1}{3} \text {Subst}\left (\int \frac {1}{x (1+x)^{2/3}} \, dx,x,x^3\right ) \\ & = -\sqrt [3]{1+x^3}+\frac {1}{4} \left (1+x^3\right )^{4/3}+\frac {\log (x)}{2}+\frac {1}{2} \text {Subst}\left (\int \frac {1}{1-x} \, dx,x,\sqrt [3]{1+x^3}\right )+\frac {1}{2} \text {Subst}\left (\int \frac {1}{1+x+x^2} \, dx,x,\sqrt [3]{1+x^3}\right ) \\ & = -\sqrt [3]{1+x^3}+\frac {1}{4} \left (1+x^3\right )^{4/3}+\frac {\log (x)}{2}-\frac {1}{2} \log \left (1-\sqrt [3]{1+x^3}\right )-\text {Subst}\left (\int \frac {1}{-3-x^2} \, dx,x,1+2 \sqrt [3]{1+x^3}\right ) \\ & = -\sqrt [3]{1+x^3}+\frac {1}{4} \left (1+x^3\right )^{4/3}+\frac {\arctan \left (\frac {1+2 \sqrt [3]{1+x^3}}{\sqrt {3}}\right )}{\sqrt {3}}+\frac {\log (x)}{2}-\frac {1}{2} \log \left (1-\sqrt [3]{1+x^3}\right ) \\ \end{align*}
Time = 0.06 (sec) , antiderivative size = 85, normalized size of antiderivative = 0.96 \[ \int \frac {\left (-1+x^3\right ) \sqrt [3]{1+x^3}}{x} \, dx=\frac {1}{12} \left (3 \left (-3+x^3\right ) \sqrt [3]{1+x^3}+4 \sqrt {3} \arctan \left (\frac {1+2 \sqrt [3]{1+x^3}}{\sqrt {3}}\right )-4 \log \left (-1+\sqrt [3]{1+x^3}\right )+2 \log \left (1+\sqrt [3]{1+x^3}+\left (1+x^3\right )^{2/3}\right )\right ) \]
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Result contains higher order function than in optimal. Order 5 vs. order 3.
Time = 2.29 (sec) , antiderivative size = 65, normalized size of antiderivative = 0.73
method | result | size |
meijerg | \(\frac {-\Gamma \left (\frac {2}{3}\right ) x^{3} \operatorname {hypergeom}\left (\left [\frac {2}{3}, 1, 1\right ], \left [2, 2\right ], -x^{3}\right )-3 \left (3+\frac {\pi \sqrt {3}}{6}-\frac {3 \ln \left (3\right )}{2}+3 \ln \left (x \right )\right ) \Gamma \left (\frac {2}{3}\right )}{9 \Gamma \left (\frac {2}{3}\right )}+\frac {x^{3} \operatorname {hypergeom}\left (\left [-\frac {1}{3}, 1\right ], \left [2\right ], -x^{3}\right )}{3}\) | \(65\) |
pseudoelliptic | \(\frac {x^{3} \left (x^{3}+1\right )^{\frac {1}{3}}}{4}-\frac {3 \left (x^{3}+1\right )^{\frac {1}{3}}}{4}-\frac {\ln \left (-1+\left (x^{3}+1\right )^{\frac {1}{3}}\right )}{3}+\frac {\ln \left (1+\left (x^{3}+1\right )^{\frac {1}{3}}+\left (x^{3}+1\right )^{\frac {2}{3}}\right )}{6}+\frac {\sqrt {3}\, \arctan \left (\frac {\left (2 \left (x^{3}+1\right )^{\frac {1}{3}}+1\right ) \sqrt {3}}{3}\right )}{3}\) | \(76\) |
trager | \(\left (\frac {x^{3}}{4}-\frac {3}{4}\right ) \left (x^{3}+1\right )^{\frac {1}{3}}+\frac {\operatorname {RootOf}\left (\textit {\_Z}^{2}-\textit {\_Z} +1\right ) \ln \left (-\frac {4 \operatorname {RootOf}\left (\textit {\_Z}^{2}-\textit {\_Z} +1\right )^{2} x^{3}-17 \operatorname {RootOf}\left (\textit {\_Z}^{2}-\textit {\_Z} +1\right ) x^{3}-15 \operatorname {RootOf}\left (\textit {\_Z}^{2}-\textit {\_Z} +1\right ) \left (x^{3}+1\right )^{\frac {2}{3}}+15 x^{3}-4 \operatorname {RootOf}\left (\textit {\_Z}^{2}-\textit {\_Z} +1\right )^{2}-15 \left (x^{3}+1\right )^{\frac {1}{3}} \operatorname {RootOf}\left (\textit {\_Z}^{2}-\textit {\_Z} +1\right )+24 \left (x^{3}+1\right )^{\frac {2}{3}}-11 \operatorname {RootOf}\left (\textit {\_Z}^{2}-\textit {\_Z} +1\right )+24 \left (x^{3}+1\right )^{\frac {1}{3}}+20}{x^{3}}\right )}{3}-\frac {\ln \left (-\frac {4 \operatorname {RootOf}\left (\textit {\_Z}^{2}-\textit {\_Z} +1\right )^{2} x^{3}+9 \operatorname {RootOf}\left (\textit {\_Z}^{2}-\textit {\_Z} +1\right ) x^{3}+15 \operatorname {RootOf}\left (\textit {\_Z}^{2}-\textit {\_Z} +1\right ) \left (x^{3}+1\right )^{\frac {2}{3}}+2 x^{3}-4 \operatorname {RootOf}\left (\textit {\_Z}^{2}-\textit {\_Z} +1\right )^{2}+15 \left (x^{3}+1\right )^{\frac {1}{3}} \operatorname {RootOf}\left (\textit {\_Z}^{2}-\textit {\_Z} +1\right )+9 \left (x^{3}+1\right )^{\frac {2}{3}}+19 \operatorname {RootOf}\left (\textit {\_Z}^{2}-\textit {\_Z} +1\right )+9 \left (x^{3}+1\right )^{\frac {1}{3}}+5}{x^{3}}\right ) \operatorname {RootOf}\left (\textit {\_Z}^{2}-\textit {\_Z} +1\right )}{3}+\frac {\ln \left (-\frac {4 \operatorname {RootOf}\left (\textit {\_Z}^{2}-\textit {\_Z} +1\right )^{2} x^{3}+9 \operatorname {RootOf}\left (\textit {\_Z}^{2}-\textit {\_Z} +1\right ) x^{3}+15 \operatorname {RootOf}\left (\textit {\_Z}^{2}-\textit {\_Z} +1\right ) \left (x^{3}+1\right )^{\frac {2}{3}}+2 x^{3}-4 \operatorname {RootOf}\left (\textit {\_Z}^{2}-\textit {\_Z} +1\right )^{2}+15 \left (x^{3}+1\right )^{\frac {1}{3}} \operatorname {RootOf}\left (\textit {\_Z}^{2}-\textit {\_Z} +1\right )+9 \left (x^{3}+1\right )^{\frac {2}{3}}+19 \operatorname {RootOf}\left (\textit {\_Z}^{2}-\textit {\_Z} +1\right )+9 \left (x^{3}+1\right )^{\frac {1}{3}}+5}{x^{3}}\right )}{3}\) | \(404\) |
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Time = 0.26 (sec) , antiderivative size = 70, normalized size of antiderivative = 0.79 \[ \int \frac {\left (-1+x^3\right ) \sqrt [3]{1+x^3}}{x} \, dx=\frac {1}{3} \, \sqrt {3} \arctan \left (\frac {2}{3} \, \sqrt {3} {\left (x^{3} + 1\right )}^{\frac {1}{3}} + \frac {1}{3} \, \sqrt {3}\right ) + \frac {1}{4} \, {\left (x^{3} + 1\right )}^{\frac {1}{3}} {\left (x^{3} - 3\right )} + \frac {1}{6} \, \log \left ({\left (x^{3} + 1\right )}^{\frac {2}{3}} + {\left (x^{3} + 1\right )}^{\frac {1}{3}} + 1\right ) - \frac {1}{3} \, \log \left ({\left (x^{3} + 1\right )}^{\frac {1}{3}} - 1\right ) \]
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Time = 7.25 (sec) , antiderivative size = 82, normalized size of antiderivative = 0.92 \[ \int \frac {\left (-1+x^3\right ) \sqrt [3]{1+x^3}}{x} \, dx=\frac {\left (x^{3} + 1\right )^{\frac {4}{3}}}{4} - \sqrt [3]{x^{3} + 1} - \frac {\log {\left (\sqrt [3]{x^{3} + 1} - 1 \right )}}{3} + \frac {\log {\left (\left (x^{3} + 1\right )^{\frac {2}{3}} + \sqrt [3]{x^{3} + 1} + 1 \right )}}{6} + \frac {\sqrt {3} \operatorname {atan}{\left (\frac {2 \sqrt {3} \left (\sqrt [3]{x^{3} + 1} + \frac {1}{2}\right )}{3} \right )}}{3} \]
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Time = 0.28 (sec) , antiderivative size = 72, normalized size of antiderivative = 0.81 \[ \int \frac {\left (-1+x^3\right ) \sqrt [3]{1+x^3}}{x} \, dx=\frac {1}{3} \, \sqrt {3} \arctan \left (\frac {1}{3} \, \sqrt {3} {\left (2 \, {\left (x^{3} + 1\right )}^{\frac {1}{3}} + 1\right )}\right ) + \frac {1}{4} \, {\left (x^{3} + 1\right )}^{\frac {4}{3}} - {\left (x^{3} + 1\right )}^{\frac {1}{3}} + \frac {1}{6} \, \log \left ({\left (x^{3} + 1\right )}^{\frac {2}{3}} + {\left (x^{3} + 1\right )}^{\frac {1}{3}} + 1\right ) - \frac {1}{3} \, \log \left ({\left (x^{3} + 1\right )}^{\frac {1}{3}} - 1\right ) \]
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Time = 0.28 (sec) , antiderivative size = 73, normalized size of antiderivative = 0.82 \[ \int \frac {\left (-1+x^3\right ) \sqrt [3]{1+x^3}}{x} \, dx=\frac {1}{3} \, \sqrt {3} \arctan \left (\frac {1}{3} \, \sqrt {3} {\left (2 \, {\left (x^{3} + 1\right )}^{\frac {1}{3}} + 1\right )}\right ) + \frac {1}{4} \, {\left (x^{3} + 1\right )}^{\frac {4}{3}} - {\left (x^{3} + 1\right )}^{\frac {1}{3}} + \frac {1}{6} \, \log \left ({\left (x^{3} + 1\right )}^{\frac {2}{3}} + {\left (x^{3} + 1\right )}^{\frac {1}{3}} + 1\right ) - \frac {1}{3} \, \log \left ({\left | {\left (x^{3} + 1\right )}^{\frac {1}{3}} - 1 \right |}\right ) \]
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Time = 5.99 (sec) , antiderivative size = 86, normalized size of antiderivative = 0.97 \[ \int \frac {\left (-1+x^3\right ) \sqrt [3]{1+x^3}}{x} \, dx=\frac {{\left (x^3+1\right )}^{4/3}}{4}-{\left (x^3+1\right )}^{1/3}-\frac {\ln \left ({\left (x^3+1\right )}^{1/3}-1\right )}{3}-\ln \left (3\,{\left (x^3+1\right )}^{1/3}+\frac {3}{2}-\frac {\sqrt {3}\,3{}\mathrm {i}}{2}\right )\,\left (-\frac {1}{6}+\frac {\sqrt {3}\,1{}\mathrm {i}}{6}\right )+\ln \left (3\,{\left (x^3+1\right )}^{1/3}+\frac {3}{2}+\frac {\sqrt {3}\,3{}\mathrm {i}}{2}\right )\,\left (\frac {1}{6}+\frac {\sqrt {3}\,1{}\mathrm {i}}{6}\right ) \]
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