Optimal. Leaf size=12 \[ \frac{1}{20} \tan ^{-1}\left (\frac{x^5}{4}\right ) \]
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Rubi [A] time = 0.0050937, antiderivative size = 12, normalized size of antiderivative = 1., number of steps used = 2, number of rules used = 2, integrand size = 11, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.182, Rules used = {275, 203} \[ \frac{1}{20} \tan ^{-1}\left (\frac{x^5}{4}\right ) \]
Antiderivative was successfully verified.
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Rule 275
Rule 203
Rubi steps
\begin{align*} \int \frac{x^4}{16+x^{10}} \, dx &=\frac{1}{5} \operatorname{Subst}\left (\int \frac{1}{16+x^2} \, dx,x,x^5\right )\\ &=\frac{1}{20} \tan ^{-1}\left (\frac{x^5}{4}\right )\\ \end{align*}
Mathematica [A] time = 0.0036869, size = 12, normalized size = 1. \[ \frac{1}{20} \tan ^{-1}\left (\frac{x^5}{4}\right ) \]
Antiderivative was successfully verified.
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Maple [A] time = 0.001, size = 9, normalized size = 0.8 \begin{align*}{\frac{1}{20}\arctan \left ({\frac{{x}^{5}}{4}} \right ) } \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 1.40738, size = 11, normalized size = 0.92 \begin{align*} \frac{1}{20} \, \arctan \left (\frac{1}{4} \, x^{5}\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 2.14365, size = 30, normalized size = 2.5 \begin{align*} \frac{1}{20} \, \arctan \left (\frac{1}{4} \, x^{5}\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 0.111918, size = 7, normalized size = 0.58 \begin{align*} \frac{\operatorname{atan}{\left (\frac{x^{5}}{4} \right )}}{20} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.06897, size = 11, normalized size = 0.92 \begin{align*} \frac{1}{20} \, \arctan \left (\frac{1}{4} \, x^{5}\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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