Optimal. Leaf size=25 \[ -\frac {1}{3} x \sqrt {1-x^4}+\frac {1}{3} F\left (\left .\sin ^{-1}(x)\right |-1\right ) \]
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Rubi [A]
time = 0.00, antiderivative size = 25, normalized size of antiderivative = 1.00, number of steps
used = 2, number of rules used = 2, integrand size = 15, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.133, Rules used = {327, 227}
\begin {gather*} \frac {1}{3} F(\text {ArcSin}(x)|-1)-\frac {1}{3} x \sqrt {1-x^4} \end {gather*}
Antiderivative was successfully verified.
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Rule 227
Rule 327
Rubi steps
\begin {align*} \int \frac {x^4}{\sqrt {1-x^4}} \, dx &=-\frac {1}{3} x \sqrt {1-x^4}+\frac {1}{3} \int \frac {1}{\sqrt {1-x^4}} \, dx\\ &=-\frac {1}{3} x \sqrt {1-x^4}+\frac {1}{3} F\left (\left .\sin ^{-1}(x)\right |-1\right )\\ \end {align*}
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Mathematica [C] Result contains higher order function than in optimal. Order 5 vs. order 4 in
optimal.
time = 10.02, size = 32, normalized size = 1.28 \begin {gather*} \frac {1}{3} x \left (-\sqrt {1-x^4}+\, _2F_1\left (\frac {1}{4},\frac {1}{2};\frac {5}{4};x^4\right )\right ) \end {gather*}
Antiderivative was successfully verified.
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Maple [B] Both result and optimal contain complex but leaf count of result is larger than twice
the leaf count of optimal. 44 vs. \(2 (19 ) = 38\).
time = 0.16, size = 45, normalized size = 1.80
method | result | size |
meijerg | \(\frac {x^{5} \hypergeom \left (\left [\frac {1}{2}, \frac {5}{4}\right ], \left [\frac {9}{4}\right ], x^{4}\right )}{5}\) | \(15\) |
default | \(-\frac {x \sqrt {-x^{4}+1}}{3}+\frac {\sqrt {-x^{2}+1}\, \sqrt {x^{2}+1}\, \EllipticF \left (x , i\right )}{3 \sqrt {-x^{4}+1}}\) | \(45\) |
elliptic | \(-\frac {x \sqrt {-x^{4}+1}}{3}+\frac {\sqrt {-x^{2}+1}\, \sqrt {x^{2}+1}\, \EllipticF \left (x , i\right )}{3 \sqrt {-x^{4}+1}}\) | \(45\) |
risch | \(\frac {x \left (x^{4}-1\right )}{3 \sqrt {-x^{4}+1}}+\frac {\sqrt {-x^{2}+1}\, \sqrt {x^{2}+1}\, \EllipticF \left (x , i\right )}{3 \sqrt {-x^{4}+1}}\) | \(50\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Failed to integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.07, size = 12, normalized size = 0.48 \begin {gather*} -\frac {1}{3} \, \sqrt {-x^{4} + 1} x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [B] Both result and optimal contain complex but leaf count of result is larger than twice
the leaf count of optimal. 31 vs. \(2 (15) = 30\).
time = 0.33, size = 31, normalized size = 1.24 \begin {gather*} \frac {x^{5} \Gamma \left (\frac {5}{4}\right ) {{}_{2}F_{1}\left (\begin {matrix} \frac {1}{2}, \frac {5}{4} \\ \frac {9}{4} \end {matrix}\middle | {x^{4} e^{2 i \pi }} \right )}}{4 \Gamma \left (\frac {9}{4}\right )} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {could not integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [F]
time = 0.00, size = -1, normalized size = -0.04 \begin {gather*} \int \frac {x^4}{\sqrt {1-x^4}} \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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