Integrand size = 9, antiderivative size = 43 \[ \int \frac {1}{\sqrt {1+x^4}} \, dx=\frac {\left (1+x^2\right ) \sqrt {\frac {1+x^4}{\left (1+x^2\right )^2}} \operatorname {EllipticF}\left (2 \arctan (x),\frac {1}{2}\right )}{2 \sqrt {1+x^4}} \]
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Time = 0.00 (sec) , antiderivative size = 43, normalized size of antiderivative = 1.00, number of steps used = 1, number of rules used = 1, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.111, Rules used = {226} \[ \int \frac {1}{\sqrt {1+x^4}} \, dx=\frac {\left (x^2+1\right ) \sqrt {\frac {x^4+1}{\left (x^2+1\right )^2}} \operatorname {EllipticF}\left (2 \arctan (x),\frac {1}{2}\right )}{2 \sqrt {x^4+1}} \]
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Rule 226
Rubi steps \begin{align*} \text {integral}& = \frac {\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 )}{2 \sqrt {1+x^4}} \\ \end{align*}
Result contains complex when optimal does not.
Time = 10.06 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.49 \[ \int \frac {1}{\sqrt {1+x^4}} \, dx=-\sqrt [4]{-1} \operatorname {EllipticF}\left (i \text {arcsinh}\left (\sqrt [4]{-1} x\right ),-1\right ) \]
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Result contains higher order function than in optimal. Order 5 vs. order 4.
Time = 4.12 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.33
method | result | size |
meijerg | \(x {}_{2}^{}{\moversetsp {}{\mundersetsp {}{F_{1}^{}}}}\left (\frac {1}{4},\frac {1}{2};\frac {5}{4};-x^{4}\right )\) | \(14\) |
default | \(\frac {\sqrt {-i x^{2}+1}\, \sqrt {i x^{2}+1}\, F\left (x \left (\frac {\sqrt {2}}{2}+\frac {i \sqrt {2}}{2}\right ), i\right )}{\left (\frac {\sqrt {2}}{2}+\frac {i \sqrt {2}}{2}\right ) \sqrt {x^{4}+1}}\) | \(60\) |
elliptic | \(\frac {\sqrt {-i x^{2}+1}\, \sqrt {i x^{2}+1}\, F\left (x \left (\frac {\sqrt {2}}{2}+\frac {i \sqrt {2}}{2}\right ), i\right )}{\left (\frac {\sqrt {2}}{2}+\frac {i \sqrt {2}}{2}\right ) \sqrt {x^{4}+1}}\) | \(60\) |
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Result contains complex when optimal does not.
Time = 0.08 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.30 \[ \int \frac {1}{\sqrt {1+x^4}} \, dx=-i \, \sqrt {i} F(\arcsin \left (\sqrt {i} x\right )\,|\,-1) \]
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Result contains complex when optimal does not.
Time = 0.32 (sec) , antiderivative size = 27, normalized size of antiderivative = 0.63 \[ \int \frac {1}{\sqrt {1+x^4}} \, dx=\frac {x \Gamma \left (\frac {1}{4}\right ) {{}_{2}F_{1}\left (\begin {matrix} \frac {1}{4}, \frac {1}{2} \\ \frac {5}{4} \end {matrix}\middle | {x^{4} e^{i \pi }} \right )}}{4 \Gamma \left (\frac {5}{4}\right )} \]
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\[ \int \frac {1}{\sqrt {1+x^4}} \, dx=\int { \frac {1}{\sqrt {x^{4} + 1}} \,d x } \]
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\[ \int \frac {1}{\sqrt {1+x^4}} \, dx=\int { \frac {1}{\sqrt {x^{4} + 1}} \,d x } \]
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Time = 5.44 (sec) , antiderivative size = 12, normalized size of antiderivative = 0.28 \[ \int \frac {1}{\sqrt {1+x^4}} \, dx=x\,{{}}_2{\mathrm {F}}_1\left (\frac {1}{4},\frac {1}{2};\ \frac {5}{4};\ -x^4\right ) \]
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