Integrand size = 13, antiderivative size = 124 \[ \int \frac {x^6}{\left (1+x^4\right )^{3/2}} \, dx=-\frac {x^3}{2 \sqrt {1+x^4}}+\frac {3 x \sqrt {1+x^4}}{2 \left (1+x^2\right )}-\frac {3 \left (1+x^2\right ) \sqrt {\frac {1+x^4}{\left (1+x^2\right )^2}} E\left (2 \arctan (x)\left |\frac {1}{2}\right .\right )}{2 \sqrt {1+x^4}}+\frac {3 \left (1+x^2\right ) \sqrt {\frac {1+x^4}{\left (1+x^2\right )^2}} \operatorname {EllipticF}\left (2 \arctan (x),\frac {1}{2}\right )}{4 \sqrt {1+x^4}} \]
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Time = 0.02 (sec) , antiderivative size = 124, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.308, Rules used = {294, 311, 226, 1210} \[ \int \frac {x^6}{\left (1+x^4\right )^{3/2}} \, dx=\frac {3 \left (x^2+1\right ) \sqrt {\frac {x^4+1}{\left (x^2+1\right )^2}} \operatorname {EllipticF}\left (2 \arctan (x),\frac {1}{2}\right )}{4 \sqrt {x^4+1}}-\frac {3 \left (x^2+1\right ) \sqrt {\frac {x^4+1}{\left (x^2+1\right )^2}} E\left (2 \arctan (x)\left |\frac {1}{2}\right .\right )}{2 \sqrt {x^4+1}}-\frac {x^3}{2 \sqrt {x^4+1}}+\frac {3 \sqrt {x^4+1} x}{2 \left (x^2+1\right )} \]
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Rule 226
Rule 294
Rule 311
Rule 1210
Rubi steps \begin{align*} \text {integral}& = -\frac {x^3}{2 \sqrt {1+x^4}}+\frac {3}{2} \int \frac {x^2}{\sqrt {1+x^4}} \, dx \\ & = -\frac {x^3}{2 \sqrt {1+x^4}}+\frac {3}{2} \int \frac {1}{\sqrt {1+x^4}} \, dx-\frac {3}{2} \int \frac {1-x^2}{\sqrt {1+x^4}} \, dx \\ & = -\frac {x^3}{2 \sqrt {1+x^4}}+\frac {3 x \sqrt {1+x^4}}{2 \left (1+x^2\right )}-\frac {3 \left (1+x^2\right ) \sqrt {\frac {1+x^4}{\left (1+x^2\right )^2}} E\left (2 \tan ^{-1}(x)|\frac {1}{2}\right )}{2 \sqrt {1+x^4}}+\frac {3 \left (1+x^2\right ) \sqrt {\frac {1+x^4}{\left (1+x^2\right )^2}} F\left (2 \tan ^{-1}(x)|\frac {1}{2}\right )}{4 \sqrt {1+x^4}} \\ \end{align*}
Result contains higher order function than in optimal. Order 5 vs. order 4 in optimal.
Time = 4.90 (sec) , antiderivative size = 31, normalized size of antiderivative = 0.25 \[ \int \frac {x^6}{\left (1+x^4\right )^{3/2}} \, dx=x^3 \left (\frac {1}{\sqrt {1+x^4}}-\operatorname {Hypergeometric2F1}\left (\frac {3}{4},\frac {3}{2},\frac {7}{4},-x^4\right )\right ) \]
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Result contains higher order function than in optimal. Order 5 vs. order 4.
Time = 4.34 (sec) , antiderivative size = 17, normalized size of antiderivative = 0.14
method | result | size |
meijerg | \(\frac {x^{7} {}_{2}^{}{\moversetsp {}{\mundersetsp {}{F_{1}^{}}}}\left (\frac {3}{2},\frac {7}{4};\frac {11}{4};-x^{4}\right )}{7}\) | \(17\) |
default | \(-\frac {x^{3}}{2 \sqrt {x^{4}+1}}+\frac {3 i \sqrt {-i x^{2}+1}\, \sqrt {i x^{2}+1}\, \left (F\left (x \left (\frac {\sqrt {2}}{2}+\frac {i \sqrt {2}}{2}\right ), i\right )-E\left (x \left (\frac {\sqrt {2}}{2}+\frac {i \sqrt {2}}{2}\right ), i\right )\right )}{2 \left (\frac {\sqrt {2}}{2}+\frac {i \sqrt {2}}{2}\right ) \sqrt {x^{4}+1}}\) | \(95\) |
risch | \(-\frac {x^{3}}{2 \sqrt {x^{4}+1}}+\frac {3 i \sqrt {-i x^{2}+1}\, \sqrt {i x^{2}+1}\, \left (F\left (x \left (\frac {\sqrt {2}}{2}+\frac {i \sqrt {2}}{2}\right ), i\right )-E\left (x \left (\frac {\sqrt {2}}{2}+\frac {i \sqrt {2}}{2}\right ), i\right )\right )}{2 \left (\frac {\sqrt {2}}{2}+\frac {i \sqrt {2}}{2}\right ) \sqrt {x^{4}+1}}\) | \(95\) |
elliptic | \(-\frac {x^{3}}{2 \sqrt {x^{4}+1}}+\frac {3 i \sqrt {-i x^{2}+1}\, \sqrt {i x^{2}+1}\, \left (F\left (x \left (\frac {\sqrt {2}}{2}+\frac {i \sqrt {2}}{2}\right ), i\right )-E\left (x \left (\frac {\sqrt {2}}{2}+\frac {i \sqrt {2}}{2}\right ), i\right )\right )}{2 \left (\frac {\sqrt {2}}{2}+\frac {i \sqrt {2}}{2}\right ) \sqrt {x^{4}+1}}\) | \(95\) |
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Result contains complex when optimal does not.
Time = 0.09 (sec) , antiderivative size = 74, normalized size of antiderivative = 0.60 \[ \int \frac {x^6}{\left (1+x^4\right )^{3/2}} \, dx=-\frac {3 \, \sqrt {i} {\left (-i \, x^{5} - i \, x\right )} E(\arcsin \left (\frac {\sqrt {i}}{x}\right )\,|\,-1) + 3 \, \sqrt {i} {\left (i \, x^{5} + i \, x\right )} F(\arcsin \left (\frac {\sqrt {i}}{x}\right )\,|\,-1) - {\left (2 \, x^{4} + 3\right )} \sqrt {x^{4} + 1}}{2 \, {\left (x^{5} + x\right )}} \]
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Result contains complex when optimal does not.
Time = 0.41 (sec) , antiderivative size = 29, normalized size of antiderivative = 0.23 \[ \int \frac {x^6}{\left (1+x^4\right )^{3/2}} \, dx=\frac {x^{7} \Gamma \left (\frac {7}{4}\right ) {{}_{2}F_{1}\left (\begin {matrix} \frac {3}{2}, \frac {7}{4} \\ \frac {11}{4} \end {matrix}\middle | {x^{4} e^{i \pi }} \right )}}{4 \Gamma \left (\frac {11}{4}\right )} \]
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\[ \int \frac {x^6}{\left (1+x^4\right )^{3/2}} \, dx=\int { \frac {x^{6}}{{\left (x^{4} + 1\right )}^{\frac {3}{2}}} \,d x } \]
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\[ \int \frac {x^6}{\left (1+x^4\right )^{3/2}} \, dx=\int { \frac {x^{6}}{{\left (x^{4} + 1\right )}^{\frac {3}{2}}} \,d x } \]
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Timed out. \[ \int \frac {x^6}{\left (1+x^4\right )^{3/2}} \, dx=\int \frac {x^6}{{\left (x^4+1\right )}^{3/2}} \,d x \]
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