Integrand size = 13, antiderivative size = 36 \[ \int \frac {\sqrt {-1+x^6}}{x^{13}} \, dx=\frac {\left (-2+x^6\right ) \sqrt {-1+x^6}}{24 x^{12}}+\frac {1}{24} \arctan \left (\sqrt {-1+x^6}\right ) \]
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Time = 0.01 (sec) , antiderivative size = 47, normalized size of antiderivative = 1.31, number of steps used = 5, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.385, Rules used = {272, 43, 44, 65, 209} \[ \int \frac {\sqrt {-1+x^6}}{x^{13}} \, dx=\frac {1}{24} \arctan \left (\sqrt {x^6-1}\right )+\frac {\sqrt {x^6-1}}{24 x^6}-\frac {\sqrt {x^6-1}}{12 x^{12}} \]
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Rule 43
Rule 44
Rule 65
Rule 209
Rule 272
Rubi steps \begin{align*} \text {integral}& = \frac {1}{6} \text {Subst}\left (\int \frac {\sqrt {-1+x}}{x^3} \, dx,x,x^6\right ) \\ & = -\frac {\sqrt {-1+x^6}}{12 x^{12}}+\frac {1}{24} \text {Subst}\left (\int \frac {1}{\sqrt {-1+x} x^2} \, dx,x,x^6\right ) \\ & = -\frac {\sqrt {-1+x^6}}{12 x^{12}}+\frac {\sqrt {-1+x^6}}{24 x^6}+\frac {1}{48} \text {Subst}\left (\int \frac {1}{\sqrt {-1+x} x} \, dx,x,x^6\right ) \\ & = -\frac {\sqrt {-1+x^6}}{12 x^{12}}+\frac {\sqrt {-1+x^6}}{24 x^6}+\frac {1}{24} \text {Subst}\left (\int \frac {1}{1+x^2} \, dx,x,\sqrt {-1+x^6}\right ) \\ & = -\frac {\sqrt {-1+x^6}}{12 x^{12}}+\frac {\sqrt {-1+x^6}}{24 x^6}+\frac {1}{24} \arctan \left (\sqrt {-1+x^6}\right ) \\ \end{align*}
Time = 0.03 (sec) , antiderivative size = 33, normalized size of antiderivative = 0.92 \[ \int \frac {\sqrt {-1+x^6}}{x^{13}} \, dx=\frac {1}{24} \left (\frac {\left (-2+x^6\right ) \sqrt {-1+x^6}}{x^{12}}+\arctan \left (\sqrt {-1+x^6}\right )\right ) \]
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Time = 1.27 (sec) , antiderivative size = 40, normalized size of antiderivative = 1.11
method | result | size |
pseudoelliptic | \(\frac {-\arctan \left (\frac {1}{\sqrt {x^{6}-1}}\right ) x^{12}+\sqrt {x^{6}-1}\, x^{6}-2 \sqrt {x^{6}-1}}{24 x^{12}}\) | \(40\) |
trager | \(\frac {\left (x^{6}-2\right ) \sqrt {x^{6}-1}}{24 x^{12}}-\frac {\operatorname {RootOf}\left (\textit {\_Z}^{2}+1\right ) \ln \left (-\frac {\operatorname {RootOf}\left (\textit {\_Z}^{2}+1\right )-\sqrt {x^{6}-1}}{x^{3}}\right )}{24}\) | \(49\) |
risch | \(\frac {x^{12}-3 x^{6}+2}{24 x^{12} \sqrt {x^{6}-1}}+\frac {\sqrt {-\operatorname {signum}\left (x^{6}-1\right )}\, \left (-2 \sqrt {\pi }\, \ln \left (\frac {1}{2}+\frac {\sqrt {-x^{6}+1}}{2}\right )+\left (-2 \ln \left (2\right )+6 \ln \left (x \right )+i \pi \right ) \sqrt {\pi }\right )}{48 \sqrt {\pi }\, \sqrt {\operatorname {signum}\left (x^{6}-1\right )}}\) | \(84\) |
meijerg | \(-\frac {\sqrt {\operatorname {signum}\left (x^{6}-1\right )}\, \left (-\frac {\sqrt {\pi }\, \left (x^{12}-8 x^{6}+8\right )}{8 x^{12}}+\frac {\sqrt {\pi }\, \left (-4 x^{6}+8\right ) \sqrt {-x^{6}+1}}{8 x^{12}}-\frac {\sqrt {\pi }\, \ln \left (\frac {1}{2}+\frac {\sqrt {-x^{6}+1}}{2}\right )}{2}+\frac {\left (\frac {1}{2}-2 \ln \left (2\right )+6 \ln \left (x \right )+i \pi \right ) \sqrt {\pi }}{4}+\frac {\sqrt {\pi }}{x^{12}}-\frac {\sqrt {\pi }}{x^{6}}\right )}{12 \sqrt {\pi }\, \sqrt {-\operatorname {signum}\left (x^{6}-1\right )}}\) | \(120\) |
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Time = 0.25 (sec) , antiderivative size = 31, normalized size of antiderivative = 0.86 \[ \int \frac {\sqrt {-1+x^6}}{x^{13}} \, dx=\frac {x^{12} \arctan \left (\sqrt {x^{6} - 1}\right ) + \sqrt {x^{6} - 1} {\left (x^{6} - 2\right )}}{24 \, x^{12}} \]
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Result contains complex when optimal does not.
Time = 1.93 (sec) , antiderivative size = 124, normalized size of antiderivative = 3.44 \[ \int \frac {\sqrt {-1+x^6}}{x^{13}} \, dx=\begin {cases} \frac {i \operatorname {acosh}{\left (\frac {1}{x^{3}} \right )}}{24} - \frac {i}{24 x^{3} \sqrt {-1 + \frac {1}{x^{6}}}} + \frac {i}{8 x^{9} \sqrt {-1 + \frac {1}{x^{6}}}} - \frac {i}{12 x^{15} \sqrt {-1 + \frac {1}{x^{6}}}} & \text {for}\: \frac {1}{\left |{x^{6}}\right |} > 1 \\- \frac {\operatorname {asin}{\left (\frac {1}{x^{3}} \right )}}{24} + \frac {1}{24 x^{3} \sqrt {1 - \frac {1}{x^{6}}}} - \frac {1}{8 x^{9} \sqrt {1 - \frac {1}{x^{6}}}} + \frac {1}{12 x^{15} \sqrt {1 - \frac {1}{x^{6}}}} & \text {otherwise} \end {cases} \]
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Time = 0.27 (sec) , antiderivative size = 46, normalized size of antiderivative = 1.28 \[ \int \frac {\sqrt {-1+x^6}}{x^{13}} \, dx=\frac {{\left (x^{6} - 1\right )}^{\frac {3}{2}} - \sqrt {x^{6} - 1}}{24 \, {\left (2 \, x^{6} + {\left (x^{6} - 1\right )}^{2} - 1\right )}} + \frac {1}{24} \, \arctan \left (\sqrt {x^{6} - 1}\right ) \]
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Leaf count of result is larger than twice the leaf count of optimal. 63 vs. \(2 (28) = 56\).
Time = 0.26 (sec) , antiderivative size = 63, normalized size of antiderivative = 1.75 \[ \int \frac {\sqrt {-1+x^6}}{x^{13}} \, dx=\frac {1}{96} \, \pi + \frac {\sqrt {x^{6} - 1} - \frac {1}{\sqrt {x^{6} - 1}}}{24 \, {\left ({\left (\sqrt {x^{6} - 1} - \frac {1}{\sqrt {x^{6} - 1}}\right )}^{2} + 4\right )}} + \frac {1}{48} \, \arctan \left (\frac {x^{6} - 2}{2 \, \sqrt {x^{6} - 1}}\right ) \]
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Time = 5.53 (sec) , antiderivative size = 35, normalized size of antiderivative = 0.97 \[ \int \frac {\sqrt {-1+x^6}}{x^{13}} \, dx=\frac {\mathrm {atan}\left (\sqrt {x^6-1}\right )}{24}-\frac {\frac {\sqrt {x^6-1}}{24}-\frac {{\left (x^6-1\right )}^{3/2}}{24}}{x^{12}} \]
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