Optimal. Leaf size=81 \[ \frac{1}{2} \sqrt{\frac{1}{10} \left (3+\sqrt{5}\right )} \tan ^{-1}\left (\sqrt{\frac{2}{3+\sqrt{5}}} x^2\right )-\frac{1}{2} \sqrt{\frac{1}{10} \left (3-\sqrt{5}\right )} \tan ^{-1}\left (\sqrt{\frac{1}{2} \left (3+\sqrt{5}\right )} x^2\right ) \]
[Out]
________________________________________________________________________________________
Rubi [A] time = 0.084069, antiderivative size = 81, normalized size of antiderivative = 1., number of steps used = 4, number of rules used = 3, integrand size = 16, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.188, Rules used = {1359, 1130, 203} \[ \frac{1}{2} \sqrt{\frac{1}{10} \left (3+\sqrt{5}\right )} \tan ^{-1}\left (\sqrt{\frac{2}{3+\sqrt{5}}} x^2\right )-\frac{1}{2} \sqrt{\frac{1}{10} \left (3-\sqrt{5}\right )} \tan ^{-1}\left (\sqrt{\frac{1}{2} \left (3+\sqrt{5}\right )} x^2\right ) \]
Antiderivative was successfully verified.
[In]
[Out]
Rule 1359
Rule 1130
Rule 203
Rubi steps
\begin{align*} \int \frac{x^5}{1+3 x^4+x^8} \, dx &=\frac{1}{2} \operatorname{Subst}\left (\int \frac{x^2}{1+3 x^2+x^4} \, dx,x,x^2\right )\\ &=\frac{1}{20} \left (5-3 \sqrt{5}\right ) \operatorname{Subst}\left (\int \frac{1}{\frac{3}{2}-\frac{\sqrt{5}}{2}+x^2} \, dx,x,x^2\right )+\frac{1}{20} \left (5+3 \sqrt{5}\right ) \operatorname{Subst}\left (\int \frac{1}{\frac{3}{2}+\frac{\sqrt{5}}{2}+x^2} \, dx,x,x^2\right )\\ &=\frac{1}{2} \sqrt{\frac{1}{10} \left (3+\sqrt{5}\right )} \tan ^{-1}\left (\sqrt{\frac{2}{3+\sqrt{5}}} x^2\right )-\frac{1}{2} \sqrt{\frac{1}{10} \left (3-\sqrt{5}\right )} \tan ^{-1}\left (\sqrt{\frac{1}{2} \left (3+\sqrt{5}\right )} x^2\right )\\ \end{align*}
Mathematica [A] time = 0.0468945, size = 75, normalized size = 0.93 \[ \frac{2 \sqrt{5} \tan ^{-1}\left (\sqrt{\frac{2}{3+\sqrt{5}}} x^2\right )+\left (5-3 \sqrt{5}\right ) \tan ^{-1}\left (\sqrt{\frac{1}{2} \left (3+\sqrt{5}\right )} x^2\right )}{10 \sqrt{6-2 \sqrt{5}}} \]
Antiderivative was successfully verified.
[In]
[Out]
________________________________________________________________________________________
Maple [B] time = 0.017, size = 110, normalized size = 1.4 \begin{align*}{\frac{1}{-2+2\,\sqrt{5}}\arctan \left ( 4\,{\frac{{x}^{2}}{-2+2\,\sqrt{5}}} \right ) }-{\frac{3\,\sqrt{5}}{-10+10\,\sqrt{5}}\arctan \left ( 4\,{\frac{{x}^{2}}{-2+2\,\sqrt{5}}} \right ) }+{\frac{1}{2+2\,\sqrt{5}}\arctan \left ( 4\,{\frac{{x}^{2}}{2+2\,\sqrt{5}}} \right ) }+{\frac{3\,\sqrt{5}}{10+10\,\sqrt{5}}\arctan \left ( 4\,{\frac{{x}^{2}}{2+2\,\sqrt{5}}} \right ) } \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Maxima [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{x^{5}}{x^{8} + 3 \, x^{4} + 1}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Fricas [B] time = 1.59255, size = 517, normalized size = 6.38 \begin{align*} -\frac{1}{10} \, \sqrt{10} \sqrt{\sqrt{5} + 3} \arctan \left (\frac{1}{40} \, \sqrt{10} \sqrt{2 \, x^{4} + \sqrt{5} + 3}{\left (3 \, \sqrt{5} \sqrt{2} - 5 \, \sqrt{2}\right )} \sqrt{\sqrt{5} + 3} - \frac{1}{20} \, \sqrt{10}{\left (3 \, \sqrt{5} x^{2} - 5 \, x^{2}\right )} \sqrt{\sqrt{5} + 3}\right ) + \frac{1}{10} \, \sqrt{10} \sqrt{-\sqrt{5} + 3} \arctan \left (\frac{1}{40} \, \sqrt{10} \sqrt{2 \, x^{4} - \sqrt{5} + 3}{\left (3 \, \sqrt{5} \sqrt{2} + 5 \, \sqrt{2}\right )} \sqrt{-\sqrt{5} + 3} - \frac{1}{20} \, \sqrt{10}{\left (3 \, \sqrt{5} x^{2} + 5 \, x^{2}\right )} \sqrt{-\sqrt{5} + 3}\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Sympy [A] time = 0.193788, size = 49, normalized size = 0.6 \begin{align*} - 2 \left (\frac{1}{8} - \frac{\sqrt{5}}{40}\right ) \operatorname{atan}{\left (\frac{2 x^{2}}{-1 + \sqrt{5}} \right )} + 2 \left (\frac{\sqrt{5}}{40} + \frac{1}{8}\right ) \operatorname{atan}{\left (\frac{2 x^{2}}{1 + \sqrt{5}} \right )} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Giac [A] time = 1.2764, size = 63, normalized size = 0.78 \begin{align*} \frac{1}{20} \, x^{4}{\left (\sqrt{5} - 5\right )} \arctan \left (\frac{2 \, x^{2}}{\sqrt{5} + 1}\right ) + \frac{1}{20} \, x^{4}{\left (\sqrt{5} + 5\right )} \arctan \left (\frac{2 \, x^{2}}{\sqrt{5} - 1}\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]