Optimal. Leaf size=44 \[ -\frac {3}{4 \sqrt {1+x^4}}-\frac {1}{4 x^4 \sqrt {1+x^4}}+\frac {3}{4} \tanh ^{-1}\left (\sqrt {1+x^4}\right ) \]
[Out]
________________________________________________________________________________________
Rubi [A]
time = 0.01, antiderivative size = 44, normalized size of antiderivative = 1.00, number of steps
used = 5, number of rules used = 5, integrand size = 13, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.385, Rules used = {272, 44, 53, 65,
213} \begin {gather*} -\frac {1}{4 x^4 \sqrt {x^4+1}}-\frac {3}{4 \sqrt {x^4+1}}+\frac {3}{4} \tanh ^{-1}\left (\sqrt {x^4+1}\right ) \end {gather*}
Antiderivative was successfully verified.
[In]
[Out]
Rule 44
Rule 53
Rule 65
Rule 213
Rule 272
Rubi steps
\begin {align*} \int \frac {1}{x^5 \left (1+x^4\right )^{3/2}} \, dx &=\frac {1}{4} \text {Subst}\left (\int \frac {1}{x^2 (1+x)^{3/2}} \, dx,x,x^4\right )\\ &=\frac {1}{2 x^4 \sqrt {1+x^4}}+\frac {3}{4} \text {Subst}\left (\int \frac {1}{x^2 \sqrt {1+x}} \, dx,x,x^4\right )\\ &=\frac {1}{2 x^4 \sqrt {1+x^4}}-\frac {3 \sqrt {1+x^4}}{4 x^4}-\frac {3}{8} \text {Subst}\left (\int \frac {1}{x \sqrt {1+x}} \, dx,x,x^4\right )\\ &=\frac {1}{2 x^4 \sqrt {1+x^4}}-\frac {3 \sqrt {1+x^4}}{4 x^4}-\frac {3}{4} \text {Subst}\left (\int \frac {1}{-1+x^2} \, dx,x,\sqrt {1+x^4}\right )\\ &=\frac {1}{2 x^4 \sqrt {1+x^4}}-\frac {3 \sqrt {1+x^4}}{4 x^4}+\frac {3}{4} \tanh ^{-1}\left (\sqrt {1+x^4}\right )\\ \end {align*}
________________________________________________________________________________________
Mathematica [A]
time = 0.05, size = 38, normalized size = 0.86 \begin {gather*} \frac {-1-3 x^4}{4 x^4 \sqrt {1+x^4}}+\frac {3}{4} \tanh ^{-1}\left (\sqrt {1+x^4}\right ) \end {gather*}
Antiderivative was successfully verified.
[In]
[Out]
________________________________________________________________________________________
Maple [A]
time = 0.19, size = 33, normalized size = 0.75
method | result | size |
risch | \(-\frac {3 x^{4}+1}{4 x^{4} \sqrt {x^{4}+1}}+\frac {3 \arctanh \left (\frac {1}{\sqrt {x^{4}+1}}\right )}{4}\) | \(31\) |
default | \(-\frac {1}{4 x^{4} \sqrt {x^{4}+1}}-\frac {3}{4 \sqrt {x^{4}+1}}+\frac {3 \arctanh \left (\frac {1}{\sqrt {x^{4}+1}}\right )}{4}\) | \(33\) |
elliptic | \(-\frac {1}{4 x^{4} \sqrt {x^{4}+1}}-\frac {3}{4 \sqrt {x^{4}+1}}+\frac {3 \arctanh \left (\frac {1}{\sqrt {x^{4}+1}}\right )}{4}\) | \(33\) |
trager | \(-\frac {3 x^{4}+1}{4 x^{4} \sqrt {x^{4}+1}}-\frac {3 \ln \left (\frac {-1+\sqrt {x^{4}+1}}{x^{2}}\right )}{4}\) | \(37\) |
meijerg | \(\frac {\frac {\sqrt {\pi }\, \left (20 x^{4}+8\right )}{16 x^{4}}-\frac {\sqrt {\pi }\, \left (24 x^{4}+8\right )}{16 x^{4} \sqrt {x^{4}+1}}+\frac {3 \sqrt {\pi }\, \ln \left (\frac {1}{2}+\frac {\sqrt {x^{4}+1}}{2}\right )}{2}-\frac {3 \left (\frac {5}{3}-2 \ln \left (2\right )+4 \ln \left (x \right )\right ) \sqrt {\pi }}{4}-\frac {\sqrt {\pi }}{2 x^{4}}}{2 \sqrt {\pi }}\) | \(84\) |
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Maxima [A]
time = 0.29, size = 53, normalized size = 1.20 \begin {gather*} -\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 ) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Fricas [B] Leaf count of result is larger than twice the leaf count of optimal. 66 vs.
\(2 (32) = 64\).
time = 0.36, size = 66, normalized size = 1.50 \begin {gather*} \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 )}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Sympy [A]
time = 1.47, size = 42, normalized size = 0.95 \begin {gather*} \frac {3 \operatorname {asinh}{\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}}}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Giac [A]
time = 1.51, size = 53, normalized size = 1.20 \begin {gather*} -\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 ) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Mupad [B]
time = 1.24, size = 32, normalized size = 0.73 \begin {gather*} \frac {3\,\mathrm {atanh}\left (\sqrt {x^4+1}\right )}{4}-\frac {3}{4\,\sqrt {x^4+1}}-\frac {1}{4\,x^4\,\sqrt {x^4+1}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________