Optimal. Leaf size=47 \[ -\frac{e^{-2 a}}{e^{2 a} x^4+1}-e^{-2 a} \log \left (e^{2 a} x^4+1\right )+\frac{x^4}{4} \]
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Rubi [F] time = 0.0678357, antiderivative size = 0, normalized size of antiderivative = 0., number of steps used = 0, number of rules used = 0, integrand size = 0, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0., Rules used = {} \[ \int x^3 \tanh ^2(a+2 \log (x)) \, dx \]
Verification is Not applicable to the result.
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Rubi steps
\begin{align*} \int x^3 \tanh ^2(a+2 \log (x)) \, dx &=\int x^3 \tanh ^2(a+2 \log (x)) \, dx\\ \end{align*}
Mathematica [A] time = 0.10442, size = 86, normalized size = 1.83 \[ \frac{\sinh (3 a)-\cosh (3 a)}{\left (x^4-1\right ) \sinh (a)+\left (x^4+1\right ) \cosh (a)}-\cosh (2 a) \log \left (\left (x^4-1\right ) \sinh (a)+\left (x^4+1\right ) \cosh (a)\right )+\sinh (2 a) \log \left (\left (x^4-1\right ) \sinh (a)+\left (x^4+1\right ) \cosh (a)\right )+\frac{x^4}{4} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.019, size = 42, normalized size = 0.9 \begin{align*}{\frac{{x}^{4}}{4}}-{\frac{{{\rm e}^{-2\,a}}}{1+{{\rm e}^{2\,a}}{x}^{4}}}-{{\rm e}^{-2\,a}}\ln \left ( 1+{{\rm e}^{2\,a}}{x}^{4} \right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 1.54095, size = 54, normalized size = 1.15 \begin{align*} \frac{1}{4} \, x^{4} - e^{\left (-2 \, a\right )} \log \left (x^{4} e^{\left (2 \, a\right )} + 1\right ) - \frac{1}{x^{4} e^{\left (4 \, a\right )} + e^{\left (2 \, a\right )}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 1.88471, size = 140, normalized size = 2.98 \begin{align*} \frac{x^{8} e^{\left (4 \, a\right )} + x^{4} e^{\left (2 \, a\right )} - 4 \,{\left (x^{4} e^{\left (2 \, a\right )} + 1\right )} \log \left (x^{4} e^{\left (2 \, a\right )} + 1\right ) - 4}{4 \,{\left (x^{4} e^{\left (4 \, a\right )} + e^{\left (2 \, a\right )}\right )}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int x^{3} \tanh ^{2}{\left (a + 2 \log{\left (x \right )} \right )}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.1802, size = 53, normalized size = 1.13 \begin{align*} \frac{1}{4} \, x^{4} + \frac{x^{4}}{x^{4} e^{\left (2 \, a\right )} + 1} - e^{\left (-2 \, a\right )} \log \left (x^{4} e^{\left (2 \, a\right )} + 1\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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