Optimal. Leaf size=48 \[ \frac {1}{2 x^2}-\frac {\tan ^{-1}\left (\frac {1+2 x}{\sqrt {3}}\right )}{\sqrt {3}}+\frac {1}{3} \log (1-x)-\frac {1}{6} \log \left (1+x+x^2\right ) \]
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Rubi [A]
time = 0.02, antiderivative size = 48, normalized size of antiderivative = 1.00, number of steps
used = 8, number of rules used = 8, integrand size = 11, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.727, Rules used = {1607, 331, 206,
31, 648, 632, 210, 642} \begin {gather*} \frac {1}{2 x^2}-\frac {1}{6} \log \left (x^2+x+1\right )+\frac {1}{3} \log (1-x)-\frac {\tan ^{-1}\left (\frac {2 x+1}{\sqrt {3}}\right )}{\sqrt {3}} \end {gather*}
Antiderivative was successfully verified.
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Rule 31
Rule 206
Rule 210
Rule 331
Rule 632
Rule 642
Rule 648
Rule 1607
Rubi steps
\begin {align*} \int \frac {1}{-x^3+x^6} \, dx &=\int \frac {1}{x^3 \left (-1+x^3\right )} \, dx\\ &=\frac {1}{2 x^2}+\int \frac {1}{-1+x^3} \, dx\\ &=\frac {1}{2 x^2}+\frac {1}{3} \int \frac {1}{-1+x} \, dx+\frac {1}{3} \int \frac {-2-x}{1+x+x^2} \, dx\\ &=\frac {1}{2 x^2}+\frac {1}{3} \log (1-x)-\frac {1}{6} \int \frac {1+2 x}{1+x+x^2} \, dx-\frac {1}{2} \int \frac {1}{1+x+x^2} \, dx\\ &=\frac {1}{2 x^2}+\frac {1}{3} \log (1-x)-\frac {1}{6} \log \left (1+x+x^2\right )+\text {Subst}\left (\int \frac {1}{-3-x^2} \, dx,x,1+2 x\right )\\ &=\frac {1}{2 x^2}-\frac {\tan ^{-1}\left (\frac {1+2 x}{\sqrt {3}}\right )}{\sqrt {3}}+\frac {1}{3} \log (1-x)-\frac {1}{6} \log \left (1+x+x^2\right )\\ \end {align*}
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Mathematica [A]
time = 0.01, size = 48, normalized size = 1.00 \begin {gather*} \frac {1}{2 x^2}-\frac {\tan ^{-1}\left (\frac {1+2 x}{\sqrt {3}}\right )}{\sqrt {3}}+\frac {1}{3} \log (1-x)-\frac {1}{6} \log \left (1+x+x^2\right ) \end {gather*}
Antiderivative was successfully verified.
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Mathics [A]
time = 1.98, size = 43, normalized size = 0.90 \begin {gather*} \frac {3+x^2 \left (-2 \sqrt {3} \text {ArcTan}\left [\frac {\sqrt {3} \left (1+2 x\right )}{3}\right ]-\text {Log}\left [1+x+x^2\right ]+2 \text {Log}\left [-1+x\right ]\right )}{6 x^2} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.06, size = 38, normalized size = 0.79
method | result | size |
risch | \(\frac {1}{2 x^{2}}+\frac {\ln \left (-1+x \right )}{3}-\frac {\ln \left (x^{2}+x +1\right )}{6}-\frac {\sqrt {3}\, \arctan \left (\frac {2 \sqrt {3}\, \left (x +\frac {1}{2}\right )}{3}\right )}{3}\) | \(36\) |
default | \(\frac {\ln \left (-1+x \right )}{3}+\frac {1}{2 x^{2}}-\frac {\ln \left (x^{2}+x +1\right )}{6}-\frac {\arctan \left (\frac {\left (1+2 x \right ) \sqrt {3}}{3}\right ) \sqrt {3}}{3}\) | \(38\) |
meijerg | \(-\frac {\left (-1\right )^{\frac {2}{3}} \left (\frac {3 \left (-1\right )^{\frac {1}{3}}}{2 x^{2}}+\frac {x \left (-1\right )^{\frac {1}{3}} \left (\ln \left (1-\left (x^{3}\right )^{\frac {1}{3}}\right )-\frac {\ln \left (1+\left (x^{3}\right )^{\frac {1}{3}}+\left (x^{3}\right )^{\frac {2}{3}}\right )}{2}-\sqrt {3}\, \arctan \left (\frac {\sqrt {3}\, \left (x^{3}\right )^{\frac {1}{3}}}{2+\left (x^{3}\right )^{\frac {1}{3}}}\right )\right )}{\left (x^{3}\right )^{\frac {1}{3}}}\right )}{3}\) | \(78\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.35, size = 37, normalized size = 0.77 \begin {gather*} -\frac {1}{3} \, \sqrt {3} \arctan \left (\frac {1}{3} \, \sqrt {3} {\left (2 \, x + 1\right )}\right ) + \frac {1}{2 \, x^{2}} - \frac {1}{6} \, \log \left (x^{2} + x + 1\right ) + \frac {1}{3} \, \log \left (x - 1\right ) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.34, size = 46, normalized size = 0.96 \begin {gather*} -\frac {2 \, \sqrt {3} x^{2} \arctan \left (\frac {1}{3} \, \sqrt {3} {\left (2 \, x + 1\right )}\right ) + x^{2} \log \left (x^{2} + x + 1\right ) - 2 \, x^{2} \log \left (x - 1\right ) - 3}{6 \, x^{2}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A]
time = 0.07, size = 48, normalized size = 1.00 \begin {gather*} \frac {\log {\left (x - 1 \right )}}{3} - \frac {\log {\left (x^{2} + x + 1 \right )}}{6} - \frac {\sqrt {3} \operatorname {atan}{\left (\frac {2 \sqrt {3} x}{3} + \frac {\sqrt {3}}{3} \right )}}{3} + \frac {1}{2 x^{2}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 0.00, size = 47, normalized size = 0.98 \begin {gather*} \frac {\ln \left |x-1\right |}{3}-\frac {\ln \left (x^{2}+x+1\right )}{6}-\frac {\arctan \left (\frac {2 x+1}{\sqrt {3}}\right )}{\sqrt {3}}+\frac 1{2 x^{2}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 0.11, size = 51, normalized size = 1.06 \begin {gather*} \frac {\ln \left (x-1\right )}{3}+\ln \left (x+\frac {1}{2}-\frac {\sqrt {3}\,1{}\mathrm {i}}{2}\right )\,\left (-\frac {1}{6}+\frac {\sqrt {3}\,1{}\mathrm {i}}{6}\right )-\ln \left (x+\frac {1}{2}+\frac {\sqrt {3}\,1{}\mathrm {i}}{2}\right )\,\left (\frac {1}{6}+\frac {\sqrt {3}\,1{}\mathrm {i}}{6}\right )+\frac {1}{2\,x^2} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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