Integrand size = 13, antiderivative size = 92 \[ \int \frac {\sqrt [3]{-1+x^3}}{x^4} \, dx=-\frac {\sqrt [3]{-1+x^3}}{3 x^3}-\frac {\arctan \left (\frac {1}{\sqrt {3}}-\frac {2 \sqrt [3]{-1+x^3}}{\sqrt {3}}\right )}{3 \sqrt {3}}+\frac {1}{9} \log \left (1+\sqrt [3]{-1+x^3}\right )-\frac {1}{18} \log \left (1-\sqrt [3]{-1+x^3}+\left (-1+x^3\right )^{2/3}\right ) \]
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Time = 0.03 (sec) , antiderivative size = 68, normalized size of antiderivative = 0.74, number of steps used = 6, number of rules used = 6, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.462, Rules used = {272, 43, 60, 632, 210, 31} \[ \int \frac {\sqrt [3]{-1+x^3}}{x^4} \, dx=-\frac {\arctan \left (\frac {1-2 \sqrt [3]{x^3-1}}{\sqrt {3}}\right )}{3 \sqrt {3}}-\frac {\sqrt [3]{x^3-1}}{3 x^3}+\frac {1}{6} \log \left (\sqrt [3]{x^3-1}+1\right )-\frac {\log (x)}{6} \]
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Rule 31
Rule 43
Rule 60
Rule 210
Rule 272
Rule 632
Rubi steps \begin{align*} \text {integral}& = \frac {1}{3} \text {Subst}\left (\int \frac {\sqrt [3]{-1+x}}{x^2} \, dx,x,x^3\right ) \\ & = -\frac {\sqrt [3]{-1+x^3}}{3 x^3}+\frac {1}{9} \text {Subst}\left (\int \frac {1}{(-1+x)^{2/3} x} \, dx,x,x^3\right ) \\ & = -\frac {\sqrt [3]{-1+x^3}}{3 x^3}-\frac {\log (x)}{6}+\frac {1}{6} \text {Subst}\left (\int \frac {1}{1+x} \, dx,x,\sqrt [3]{-1+x^3}\right )+\frac {1}{6} \text {Subst}\left (\int \frac {1}{1-x+x^2} \, dx,x,\sqrt [3]{-1+x^3}\right ) \\ & = -\frac {\sqrt [3]{-1+x^3}}{3 x^3}-\frac {\log (x)}{6}+\frac {1}{6} \log \left (1+\sqrt [3]{-1+x^3}\right )-\frac {1}{3} \text {Subst}\left (\int \frac {1}{-3-x^2} \, dx,x,-1+2 \sqrt [3]{-1+x^3}\right ) \\ & = -\frac {\sqrt [3]{-1+x^3}}{3 x^3}-\frac {\arctan \left (\frac {1-2 \sqrt [3]{-1+x^3}}{\sqrt {3}}\right )}{3 \sqrt {3}}-\frac {\log (x)}{6}+\frac {1}{6} \log \left (1+\sqrt [3]{-1+x^3}\right ) \\ \end{align*}
Time = 0.11 (sec) , antiderivative size = 85, normalized size of antiderivative = 0.92 \[ \int \frac {\sqrt [3]{-1+x^3}}{x^4} \, dx=\frac {1}{18} \left (-\frac {6 \sqrt [3]{-1+x^3}}{x^3}-2 \sqrt {3} \arctan \left (\frac {1-2 \sqrt [3]{-1+x^3}}{\sqrt {3}}\right )+2 \log \left (1+\sqrt [3]{-1+x^3}\right )-\log \left (1-\sqrt [3]{-1+x^3}+\left (-1+x^3\right )^{2/3}\right )\right ) \]
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Result contains higher order function than in optimal. Order 9 vs. order 3.
Time = 3.70 (sec) , antiderivative size = 75, normalized size of antiderivative = 0.82
method | result | size |
meijerg | \(\frac {\operatorname {signum}\left (x^{3}-1\right )^{\frac {1}{3}} \left (-\frac {\Gamma \left (\frac {2}{3}\right ) x^{3} \operatorname {hypergeom}\left (\left [1, 1, \frac {5}{3}\right ], \left [2, 3\right ], x^{3}\right )}{3}-\left (\frac {\pi \sqrt {3}}{6}-\frac {3 \ln \left (3\right )}{2}-1+3 \ln \left (x \right )+i \pi \right ) \Gamma \left (\frac {2}{3}\right )-\frac {3 \Gamma \left (\frac {2}{3}\right )}{x^{3}}\right )}{9 \Gamma \left (\frac {2}{3}\right ) {\left (-\operatorname {signum}\left (x^{3}-1\right )\right )}^{\frac {1}{3}}}\) | \(75\) |
risch | \(-\frac {\left (x^{3}-1\right )^{\frac {1}{3}}}{3 x^{3}}+\frac {{\left (-\operatorname {signum}\left (x^{3}-1\right )\right )}^{\frac {2}{3}} \left (\frac {2 \Gamma \left (\frac {2}{3}\right ) x^{3} \operatorname {hypergeom}\left (\left [1, 1, \frac {5}{3}\right ], \left [2, 2\right ], x^{3}\right )}{3}+\left (\frac {\pi \sqrt {3}}{6}-\frac {3 \ln \left (3\right )}{2}+3 \ln \left (x \right )+i \pi \right ) \Gamma \left (\frac {2}{3}\right )\right )}{9 \Gamma \left (\frac {2}{3}\right ) \operatorname {signum}\left (x^{3}-1\right )^{\frac {2}{3}}}\) | \(79\) |
pseudoelliptic | \(\frac {-2 \sqrt {3}\, \arctan \left (\frac {\left (2 \left (x^{3}-1\right )^{\frac {1}{3}}-1\right ) \sqrt {3}}{3}\right ) x^{3}-2 \ln \left (1+\left (x^{3}-1\right )^{\frac {1}{3}}\right ) x^{3}+\ln \left (1-\left (x^{3}-1\right )^{\frac {1}{3}}+\left (x^{3}-1\right )^{\frac {2}{3}}\right ) x^{3}+6 \left (x^{3}-1\right )^{\frac {1}{3}}}{18 \left (1+\left (x^{3}-1\right )^{\frac {1}{3}}\right ) \left (-1+\left (x^{3}-1\right )^{\frac {1}{3}}-\left (x^{3}-1\right )^{\frac {2}{3}}\right )}\) | \(107\) |
trager | \(-\frac {\left (x^{3}-1\right )^{\frac {1}{3}}}{3 x^{3}}+\frac {\ln \left (-\frac {512 \operatorname {RootOf}\left (64 \textit {\_Z}^{2}+8 \textit {\_Z} +1\right )^{2} x^{3}+552 \operatorname {RootOf}\left (64 \textit {\_Z}^{2}+8 \textit {\_Z} +1\right ) x^{3}+312 \operatorname {RootOf}\left (64 \textit {\_Z}^{2}+8 \textit {\_Z} +1\right ) \left (x^{3}-1\right )^{\frac {2}{3}}+91 x^{3}-4096 \operatorname {RootOf}\left (64 \textit {\_Z}^{2}+8 \textit {\_Z} +1\right )^{2}-840 \operatorname {RootOf}\left (64 \textit {\_Z}^{2}+8 \textit {\_Z} +1\right ) \left (x^{3}-1\right )^{\frac {1}{3}}+144 \left (x^{3}-1\right )^{\frac {2}{3}}-1664 \operatorname {RootOf}\left (64 \textit {\_Z}^{2}+8 \textit {\_Z} +1\right )+39 \left (x^{3}-1\right )^{\frac {1}{3}}-169}{x^{3}}\right )}{9}-\frac {\ln \left (\frac {105536 \operatorname {RootOf}\left (64 \textit {\_Z}^{2}+8 \textit {\_Z} +1\right )^{2} x^{3}-77464 \operatorname {RootOf}\left (64 \textit {\_Z}^{2}+8 \textit {\_Z} +1\right ) x^{3}-44016 \operatorname {RootOf}\left (64 \textit {\_Z}^{2}+8 \textit {\_Z} +1\right ) \left (x^{3}-1\right )^{\frac {2}{3}}-1266 x^{3}-844288 \operatorname {RootOf}\left (64 \textit {\_Z}^{2}+8 \textit {\_Z} +1\right )^{2}+113976 \operatorname {RootOf}\left (64 \textit {\_Z}^{2}+8 \textit {\_Z} +1\right ) \left (x^{3}-1\right )^{\frac {1}{3}}-19749 \left (x^{3}-1\right )^{\frac {2}{3}}+52456 \operatorname {RootOf}\left (64 \textit {\_Z}^{2}+8 \textit {\_Z} +1\right )-5502 \left (x^{3}-1\right )^{\frac {1}{3}}+1055}{x^{3}}\right )}{9}-\frac {8 \ln \left (\frac {105536 \operatorname {RootOf}\left (64 \textit {\_Z}^{2}+8 \textit {\_Z} +1\right )^{2} x^{3}-77464 \operatorname {RootOf}\left (64 \textit {\_Z}^{2}+8 \textit {\_Z} +1\right ) x^{3}-44016 \operatorname {RootOf}\left (64 \textit {\_Z}^{2}+8 \textit {\_Z} +1\right ) \left (x^{3}-1\right )^{\frac {2}{3}}-1266 x^{3}-844288 \operatorname {RootOf}\left (64 \textit {\_Z}^{2}+8 \textit {\_Z} +1\right )^{2}+113976 \operatorname {RootOf}\left (64 \textit {\_Z}^{2}+8 \textit {\_Z} +1\right ) \left (x^{3}-1\right )^{\frac {1}{3}}-19749 \left (x^{3}-1\right )^{\frac {2}{3}}+52456 \operatorname {RootOf}\left (64 \textit {\_Z}^{2}+8 \textit {\_Z} +1\right )-5502 \left (x^{3}-1\right )^{\frac {1}{3}}+1055}{x^{3}}\right ) \operatorname {RootOf}\left (64 \textit {\_Z}^{2}+8 \textit {\_Z} +1\right )}{9}\) | \(428\) |
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Time = 0.27 (sec) , antiderivative size = 81, normalized size of antiderivative = 0.88 \[ \int \frac {\sqrt [3]{-1+x^3}}{x^4} \, dx=\frac {2 \, \sqrt {3} x^{3} \arctan \left (\frac {2}{3} \, \sqrt {3} {\left (x^{3} - 1\right )}^{\frac {1}{3}} - \frac {1}{3} \, \sqrt {3}\right ) - x^{3} \log \left ({\left (x^{3} - 1\right )}^{\frac {2}{3}} - {\left (x^{3} - 1\right )}^{\frac {1}{3}} + 1\right ) + 2 \, x^{3} \log \left ({\left (x^{3} - 1\right )}^{\frac {1}{3}} + 1\right ) - 6 \, {\left (x^{3} - 1\right )}^{\frac {1}{3}}}{18 \, x^{3}} \]
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Result contains complex when optimal does not.
Time = 0.74 (sec) , antiderivative size = 34, normalized size of antiderivative = 0.37 \[ \int \frac {\sqrt [3]{-1+x^3}}{x^4} \, dx=- \frac {\Gamma \left (\frac {2}{3}\right ) {{}_{2}F_{1}\left (\begin {matrix} - \frac {1}{3}, \frac {2}{3} \\ \frac {5}{3} \end {matrix}\middle | {\frac {e^{2 i \pi }}{x^{3}}} \right )}}{3 x^{2} \Gamma \left (\frac {5}{3}\right )} \]
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Time = 0.27 (sec) , antiderivative size = 68, normalized size of antiderivative = 0.74 \[ \int \frac {\sqrt [3]{-1+x^3}}{x^4} \, dx=\frac {1}{9} \, \sqrt {3} \arctan \left (\frac {1}{3} \, \sqrt {3} {\left (2 \, {\left (x^{3} - 1\right )}^{\frac {1}{3}} - 1\right )}\right ) - \frac {{\left (x^{3} - 1\right )}^{\frac {1}{3}}}{3 \, x^{3}} - \frac {1}{18} \, \log \left ({\left (x^{3} - 1\right )}^{\frac {2}{3}} - {\left (x^{3} - 1\right )}^{\frac {1}{3}} + 1\right ) + \frac {1}{9} \, \log \left ({\left (x^{3} - 1\right )}^{\frac {1}{3}} + 1\right ) \]
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Time = 0.27 (sec) , antiderivative size = 69, normalized size of antiderivative = 0.75 \[ \int \frac {\sqrt [3]{-1+x^3}}{x^4} \, dx=\frac {1}{9} \, \sqrt {3} \arctan \left (\frac {1}{3} \, \sqrt {3} {\left (2 \, {\left (x^{3} - 1\right )}^{\frac {1}{3}} - 1\right )}\right ) - \frac {{\left (x^{3} - 1\right )}^{\frac {1}{3}}}{3 \, x^{3}} - \frac {1}{18} \, \log \left ({\left (x^{3} - 1\right )}^{\frac {2}{3}} - {\left (x^{3} - 1\right )}^{\frac {1}{3}} + 1\right ) + \frac {1}{9} \, \log \left ({\left | {\left (x^{3} - 1\right )}^{\frac {1}{3}} + 1 \right |}\right ) \]
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Time = 5.99 (sec) , antiderivative size = 80, normalized size of antiderivative = 0.87 \[ \int \frac {\sqrt [3]{-1+x^3}}{x^4} \, dx=\frac {\ln \left (\frac {{\left (x^3-1\right )}^{1/3}}{9}+\frac {1}{9}\right )}{9}+\ln \left ({\left (x^3-1\right )}^{1/3}-\frac {1}{2}+\frac {\sqrt {3}\,1{}\mathrm {i}}{2}\right )\,\left (-\frac {1}{18}+\frac {\sqrt {3}\,1{}\mathrm {i}}{18}\right )-\frac {{\left (x^3-1\right )}^{1/3}}{3\,x^3}-\ln \left (\frac {1}{2}-{\left (x^3-1\right )}^{1/3}+\frac {\sqrt {3}\,1{}\mathrm {i}}{2}\right )\,\left (\frac {1}{18}+\frac {\sqrt {3}\,1{}\mathrm {i}}{18}\right ) \]
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