Optimal. Leaf size=14 \[ \frac{1}{8} x^7 \sqrt{x^2} \]
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Rubi [A] time = 0.0010921, antiderivative size = 14, normalized size of antiderivative = 1., number of steps used = 2, number of rules used = 2, integrand size = 7, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.286, Rules used = {15, 30} \[ \frac{1}{8} x^7 \sqrt{x^2} \]
Antiderivative was successfully verified.
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Rule 15
Rule 30
Rubi steps
\begin{align*} \int \left (x^2\right )^{7/2} \, dx &=\frac{\sqrt{x^2} \int x^7 \, dx}{x}\\ &=\frac{1}{8} x^7 \sqrt{x^2}\\ \end{align*}
Mathematica [A] time = 0.0032648, size = 12, normalized size = 0.86 \[ \frac{1}{8} x \left (x^2\right )^{7/2} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.002, size = 9, normalized size = 0.6 \begin{align*}{\frac{x}{8} \left ({x}^{2} \right ) ^{{\frac{7}{2}}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 1.0153, size = 11, normalized size = 0.79 \begin{align*} \frac{1}{8} \,{\left (x^{2}\right )}^{\frac{7}{2}} x \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 1.26537, size = 12, normalized size = 0.86 \begin{align*} \frac{1}{8} \, x^{8} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 0.06226, size = 3, normalized size = 0.21 \begin{align*} \frac{x^{8}}{8} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.14718, size = 9, normalized size = 0.64 \begin{align*} \frac{1}{8} \, x^{8} \mathrm{sgn}\left (x\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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