Integrand size = 15, antiderivative size = 50 \[ \int \frac {1}{x^5 \left (1-x^4\right )^{3/2}} \, dx=\frac {3}{4 \sqrt {1-x^4}}-\frac {1}{4 x^4 \sqrt {1-x^4}}-\frac {3}{4} \text {arctanh}\left (\sqrt {1-x^4}\right ) \]
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Time = 0.01 (sec) , antiderivative size = 50, normalized size of antiderivative = 1.00, number of steps used = 5, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.333, Rules used = {272, 44, 53, 65, 212} \[ \int \frac {1}{x^5 \left (1-x^4\right )^{3/2}} \, dx=-\frac {3}{4} \text {arctanh}\left (\sqrt {1-x^4}\right )-\frac {1}{4 x^4 \sqrt {1-x^4}}+\frac {3}{4 \sqrt {1-x^4}} \]
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Rule 44
Rule 53
Rule 65
Rule 212
Rule 272
Rubi steps \begin{align*} \text {integral}& = \frac {1}{4} \text {Subst}\left (\int \frac {1}{(1-x)^{3/2} x^2} \, dx,x,x^4\right ) \\ & = -\frac {1}{4 x^4 \sqrt {1-x^4}}+\frac {3}{8} \text {Subst}\left (\int \frac {1}{(1-x)^{3/2} x} \, dx,x,x^4\right ) \\ & = \frac {3}{4 \sqrt {1-x^4}}-\frac {1}{4 x^4 \sqrt {1-x^4}}+\frac {3}{8} \text {Subst}\left (\int \frac {1}{\sqrt {1-x} x} \, dx,x,x^4\right ) \\ & = \frac {3}{4 \sqrt {1-x^4}}-\frac {1}{4 x^4 \sqrt {1-x^4}}-\frac {3}{4} \text {Subst}\left (\int \frac {1}{1-x^2} \, dx,x,\sqrt {1-x^4}\right ) \\ & = \frac {3}{4 \sqrt {1-x^4}}-\frac {1}{4 x^4 \sqrt {1-x^4}}-\frac {3}{4} \tanh ^{-1}\left (\sqrt {1-x^4}\right ) \\ \end{align*}
Time = 0.08 (sec) , antiderivative size = 41, normalized size of antiderivative = 0.82 \[ \int \frac {1}{x^5 \left (1-x^4\right )^{3/2}} \, dx=\frac {1}{4} \left (\frac {-1+3 x^4}{x^4 \sqrt {1-x^4}}-3 \text {arctanh}\left (\sqrt {1-x^4}\right )\right ) \]
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Time = 4.16 (sec) , antiderivative size = 35, normalized size of antiderivative = 0.70
method | result | size |
risch | \(\frac {3 x^{4}-1}{4 x^{4} \sqrt {-x^{4}+1}}-\frac {3 \,\operatorname {arctanh}\left (\frac {1}{\sqrt {-x^{4}+1}}\right )}{4}\) | \(35\) |
pseudoelliptic | \(-\frac {3 \left (\operatorname {arctanh}\left (\frac {1}{\sqrt {-x^{4}+1}}\right ) x^{4} \sqrt {-x^{4}+1}-x^{4}+\frac {1}{3}\right )}{4 \sqrt {-x^{4}+1}\, x^{4}}\) | \(45\) |
trager | \(-\frac {\left (3 x^{4}-1\right ) \sqrt {-x^{4}+1}}{4 \left (x^{4}-1\right ) x^{4}}+\frac {3 \ln \left (\frac {-1+\sqrt {-x^{4}+1}}{x^{2}}\right )}{4}\) | \(48\) |
default | \(-\frac {\sqrt {-x^{4}+1}}{4 x^{4}}-\frac {3 \,\operatorname {arctanh}\left (\frac {1}{\sqrt {-x^{4}+1}}\right )}{4}-\frac {\sqrt {-\left (x^{2}-1\right )^{2}+2-2 x^{2}}}{4 \left (x^{2}-1\right )}+\frac {\sqrt {-\left (x^{2}+1\right )^{2}+2+2 x^{2}}}{4 x^{2}+4}\) | \(82\) |
elliptic | \(-\frac {\sqrt {-x^{4}+1}}{4 x^{4}}-\frac {3 \,\operatorname {arctanh}\left (\frac {1}{\sqrt {-x^{4}+1}}\right )}{4}-\frac {\sqrt {-\left (x^{2}-1\right )^{2}+2-2 x^{2}}}{4 \left (x^{2}-1\right )}+\frac {\sqrt {-\left (x^{2}+1\right )^{2}+2+2 x^{2}}}{4 x^{2}+4}\) | \(82\) |
meijerg | \(-\frac {\frac {\sqrt {\pi }}{2 x^{4}}-\frac {3 \left (\frac {5}{3}-2 \ln \left (2\right )+4 \ln \left (x \right )+i \pi \right ) \sqrt {\pi }}{4}-\frac {\sqrt {\pi }\, \left (-20 x^{4}+8\right )}{16 x^{4}}+\frac {\sqrt {\pi }\, \left (-24 x^{4}+8\right )}{16 x^{4} \sqrt {-x^{4}+1}}+\frac {3 \sqrt {\pi }\, \ln \left (\frac {1}{2}+\frac {\sqrt {-x^{4}+1}}{2}\right )}{2}}{2 \sqrt {\pi }}\) | \(92\) |
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Leaf count of result is larger than twice the leaf count of optimal. 78 vs. \(2 (38) = 76\).
Time = 0.29 (sec) , antiderivative size = 78, normalized size of antiderivative = 1.56 \[ \int \frac {1}{x^5 \left (1-x^4\right )^{3/2}} \, dx=-\frac {3 \, {\left (x^{8} - x^{4}\right )} \log \left (\sqrt {-x^{4} + 1} + 1\right ) - 3 \, {\left (x^{8} - x^{4}\right )} \log \left (\sqrt {-x^{4} + 1} - 1\right ) + 2 \, {\left (3 \, x^{4} - 1\right )} \sqrt {-x^{4} + 1}}{8 \, {\left (x^{8} - x^{4}\right )}} \]
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Result contains complex when optimal does not.
Time = 1.48 (sec) , antiderivative size = 95, normalized size of antiderivative = 1.90 \[ \int \frac {1}{x^5 \left (1-x^4\right )^{3/2}} \, dx=\begin {cases} - \frac {3 \operatorname {acosh}{\left (\frac {1}{x^{2}} \right )}}{4} + \frac {3}{4 x^{2} \sqrt {-1 + \frac {1}{x^{4}}}} - \frac {1}{4 x^{6} \sqrt {-1 + \frac {1}{x^{4}}}} & \text {for}\: \frac {1}{\left |{x^{4}}\right |} > 1 \\\frac {3 i \operatorname {asin}{\left (\frac {1}{x^{2}} \right )}}{4} - \frac {3 i}{4 x^{2} \sqrt {1 - \frac {1}{x^{4}}}} + \frac {i}{4 x^{6} \sqrt {1 - \frac {1}{x^{4}}}} & \text {otherwise} \end {cases} \]
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none
Time = 0.19 (sec) , antiderivative size = 61, normalized size of antiderivative = 1.22 \[ \int \frac {1}{x^5 \left (1-x^4\right )^{3/2}} \, dx=-\frac {3 \, x^{4} - 1}{4 \, {\left ({\left (-x^{4} + 1\right )}^{\frac {3}{2}} - \sqrt {-x^{4} + 1}\right )}} - \frac {3}{8} \, \log \left (\sqrt {-x^{4} + 1} + 1\right ) + \frac {3}{8} \, \log \left (\sqrt {-x^{4} + 1} - 1\right ) \]
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Time = 0.37 (sec) , antiderivative size = 63, normalized size of antiderivative = 1.26 \[ \int \frac {1}{x^5 \left (1-x^4\right )^{3/2}} \, dx=-\frac {3 \, x^{4} - 1}{4 \, {\left ({\left (-x^{4} + 1\right )}^{\frac {3}{2}} - \sqrt {-x^{4} + 1}\right )}} - \frac {3}{8} \, \log \left (\sqrt {-x^{4} + 1} + 1\right ) + \frac {3}{8} \, \log \left (-\sqrt {-x^{4} + 1} + 1\right ) \]
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Time = 5.89 (sec) , antiderivative size = 38, normalized size of antiderivative = 0.76 \[ \int \frac {1}{x^5 \left (1-x^4\right )^{3/2}} \, dx=\frac {3}{4\,\sqrt {1-x^4}}-\frac {1}{4\,x^4\,\sqrt {1-x^4}}-\frac {3\,\mathrm {atanh}\left (\sqrt {1-x^4}\right )}{4} \]
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