Optimal. Leaf size=167 \[ -a^3 \text{PolyLog}\left (2,1-\frac{2}{1-a x}\right )+\frac{5}{3} a^3 \text{PolyLog}\left (2,\frac{2}{a x+1}-1\right )-\frac{a^2}{3 x}+a^4 x \tanh ^{-1}(a x)^2-\frac{2}{3} a^3 \tanh ^{-1}(a x)^2+\frac{1}{3} a^3 \tanh ^{-1}(a x)+\frac{2 a^2 \tanh ^{-1}(a x)^2}{x}-2 a^3 \log \left (\frac{2}{1-a x}\right ) \tanh ^{-1}(a x)-\frac{10}{3} a^3 \log \left (2-\frac{2}{a x+1}\right ) \tanh ^{-1}(a x)-\frac{a \tanh ^{-1}(a x)}{3 x^2}-\frac{\tanh ^{-1}(a x)^2}{3 x^3} \]
[Out]
________________________________________________________________________________________
Rubi [A] time = 0.430452, antiderivative size = 167, normalized size of antiderivative = 1., number of steps used = 19, number of rules used = 13, integrand size = 22, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.591, Rules used = {6012, 5910, 5984, 5918, 2402, 2315, 5916, 5982, 325, 206, 5988, 5932, 2447} \[ -a^3 \text{PolyLog}\left (2,1-\frac{2}{1-a x}\right )+\frac{5}{3} a^3 \text{PolyLog}\left (2,\frac{2}{a x+1}-1\right )-\frac{a^2}{3 x}+a^4 x \tanh ^{-1}(a x)^2-\frac{2}{3} a^3 \tanh ^{-1}(a x)^2+\frac{1}{3} a^3 \tanh ^{-1}(a x)+\frac{2 a^2 \tanh ^{-1}(a x)^2}{x}-2 a^3 \log \left (\frac{2}{1-a x}\right ) \tanh ^{-1}(a x)-\frac{10}{3} a^3 \log \left (2-\frac{2}{a x+1}\right ) \tanh ^{-1}(a x)-\frac{a \tanh ^{-1}(a x)}{3 x^2}-\frac{\tanh ^{-1}(a x)^2}{3 x^3} \]
Antiderivative was successfully verified.
[In]
[Out]
Rule 6012
Rule 5910
Rule 5984
Rule 5918
Rule 2402
Rule 2315
Rule 5916
Rule 5982
Rule 325
Rule 206
Rule 5988
Rule 5932
Rule 2447
Rubi steps
\begin{align*} \int \frac{\left (1-a^2 x^2\right )^2 \tanh ^{-1}(a x)^2}{x^4} \, dx &=\int \left (a^4 \tanh ^{-1}(a x)^2+\frac{\tanh ^{-1}(a x)^2}{x^4}-\frac{2 a^2 \tanh ^{-1}(a x)^2}{x^2}\right ) \, dx\\ &=-\left (\left (2 a^2\right ) \int \frac{\tanh ^{-1}(a x)^2}{x^2} \, dx\right )+a^4 \int \tanh ^{-1}(a x)^2 \, dx+\int \frac{\tanh ^{-1}(a x)^2}{x^4} \, dx\\ &=-\frac{\tanh ^{-1}(a x)^2}{3 x^3}+\frac{2 a^2 \tanh ^{-1}(a x)^2}{x}+a^4 x \tanh ^{-1}(a x)^2+\frac{1}{3} (2 a) \int \frac{\tanh ^{-1}(a x)}{x^3 \left (1-a^2 x^2\right )} \, dx-\left (4 a^3\right ) \int \frac{\tanh ^{-1}(a x)}{x \left (1-a^2 x^2\right )} \, dx-\left (2 a^5\right ) \int \frac{x \tanh ^{-1}(a x)}{1-a^2 x^2} \, dx\\ &=-a^3 \tanh ^{-1}(a x)^2-\frac{\tanh ^{-1}(a x)^2}{3 x^3}+\frac{2 a^2 \tanh ^{-1}(a x)^2}{x}+a^4 x \tanh ^{-1}(a x)^2+\frac{1}{3} (2 a) \int \frac{\tanh ^{-1}(a x)}{x^3} \, dx+\frac{1}{3} \left (2 a^3\right ) \int \frac{\tanh ^{-1}(a x)}{x \left (1-a^2 x^2\right )} \, dx-\left (4 a^3\right ) \int \frac{\tanh ^{-1}(a x)}{x (1+a x)} \, dx-\left (2 a^4\right ) \int \frac{\tanh ^{-1}(a x)}{1-a x} \, dx\\ &=-\frac{a \tanh ^{-1}(a x)}{3 x^2}-\frac{2}{3} a^3 \tanh ^{-1}(a x)^2-\frac{\tanh ^{-1}(a x)^2}{3 x^3}+\frac{2 a^2 \tanh ^{-1}(a x)^2}{x}+a^4 x \tanh ^{-1}(a x)^2-2 a^3 \tanh ^{-1}(a x) \log \left (\frac{2}{1-a x}\right )-4 a^3 \tanh ^{-1}(a x) \log \left (2-\frac{2}{1+a x}\right )+\frac{1}{3} a^2 \int \frac{1}{x^2 \left (1-a^2 x^2\right )} \, dx+\frac{1}{3} \left (2 a^3\right ) \int \frac{\tanh ^{-1}(a x)}{x (1+a x)} \, dx+\left (2 a^4\right ) \int \frac{\log \left (\frac{2}{1-a x}\right )}{1-a^2 x^2} \, dx+\left (4 a^4\right ) \int \frac{\log \left (2-\frac{2}{1+a x}\right )}{1-a^2 x^2} \, dx\\ &=-\frac{a^2}{3 x}-\frac{a \tanh ^{-1}(a x)}{3 x^2}-\frac{2}{3} a^3 \tanh ^{-1}(a x)^2-\frac{\tanh ^{-1}(a x)^2}{3 x^3}+\frac{2 a^2 \tanh ^{-1}(a x)^2}{x}+a^4 x \tanh ^{-1}(a x)^2-2 a^3 \tanh ^{-1}(a x) \log \left (\frac{2}{1-a x}\right )-\frac{10}{3} a^3 \tanh ^{-1}(a x) \log \left (2-\frac{2}{1+a x}\right )+2 a^3 \text{Li}_2\left (-1+\frac{2}{1+a x}\right )-\left (2 a^3\right ) \operatorname{Subst}\left (\int \frac{\log (2 x)}{1-2 x} \, dx,x,\frac{1}{1-a x}\right )+\frac{1}{3} a^4 \int \frac{1}{1-a^2 x^2} \, dx-\frac{1}{3} \left (2 a^4\right ) \int \frac{\log \left (2-\frac{2}{1+a x}\right )}{1-a^2 x^2} \, dx\\ &=-\frac{a^2}{3 x}+\frac{1}{3} a^3 \tanh ^{-1}(a x)-\frac{a \tanh ^{-1}(a x)}{3 x^2}-\frac{2}{3} a^3 \tanh ^{-1}(a x)^2-\frac{\tanh ^{-1}(a x)^2}{3 x^3}+\frac{2 a^2 \tanh ^{-1}(a x)^2}{x}+a^4 x \tanh ^{-1}(a x)^2-2 a^3 \tanh ^{-1}(a x) \log \left (\frac{2}{1-a x}\right )-\frac{10}{3} a^3 \tanh ^{-1}(a x) \log \left (2-\frac{2}{1+a x}\right )-a^3 \text{Li}_2\left (1-\frac{2}{1-a x}\right )+\frac{5}{3} a^3 \text{Li}_2\left (-1+\frac{2}{1+a x}\right )\\ \end{align*}
Mathematica [A] time = 0.0688928, size = 153, normalized size = 0.92 \[ \frac{1}{3} \left (3 a^3 \text{PolyLog}\left (2,-e^{-2 \tanh ^{-1}(a x)}\right )+5 a^3 \text{PolyLog}\left (2,e^{-2 \tanh ^{-1}(a x)}\right )-\frac{a^2}{x}+3 a^4 x \tanh ^{-1}(a x)^2-8 a^3 \tanh ^{-1}(a x)^2+a^3 \tanh ^{-1}(a x)+\frac{6 a^2 \tanh ^{-1}(a x)^2}{x}-10 a^3 \tanh ^{-1}(a x) \log \left (1-e^{-2 \tanh ^{-1}(a x)}\right )-6 a^3 \tanh ^{-1}(a x) \log \left (e^{-2 \tanh ^{-1}(a x)}+1\right )-\frac{a \tanh ^{-1}(a x)}{x^2}-\frac{\tanh ^{-1}(a x)^2}{x^3}\right ) \]
Warning: Unable to verify antiderivative.
[In]
[Out]
________________________________________________________________________________________
Maple [A] time = 0.061, size = 249, normalized size = 1.5 \begin{align*}{a}^{4}x \left ({\it Artanh} \left ( ax \right ) \right ) ^{2}+2\,{\frac{{a}^{2} \left ({\it Artanh} \left ( ax \right ) \right ) ^{2}}{x}}-{\frac{ \left ({\it Artanh} \left ( ax \right ) \right ) ^{2}}{3\,{x}^{3}}}+{\frac{8\,{a}^{3}{\it Artanh} \left ( ax \right ) \ln \left ( ax-1 \right ) }{3}}-{\frac{a{\it Artanh} \left ( ax \right ) }{3\,{x}^{2}}}-{\frac{10\,{a}^{3}{\it Artanh} \left ( ax \right ) \ln \left ( ax \right ) }{3}}+{\frac{8\,{a}^{3}{\it Artanh} \left ( ax \right ) \ln \left ( ax+1 \right ) }{3}}-{\frac{{a}^{2}}{3\,x}}-{\frac{{a}^{3}\ln \left ( ax-1 \right ) }{6}}+{\frac{{a}^{3}\ln \left ( ax+1 \right ) }{6}}+{\frac{5\,{a}^{3}{\it dilog} \left ( ax \right ) }{3}}+{\frac{5\,{a}^{3}{\it dilog} \left ( ax+1 \right ) }{3}}+{\frac{5\,{a}^{3}\ln \left ( ax \right ) \ln \left ( ax+1 \right ) }{3}}+{\frac{2\,{a}^{3} \left ( \ln \left ( ax-1 \right ) \right ) ^{2}}{3}}-{\frac{8\,{a}^{3}}{3}{\it dilog} \left ({\frac{1}{2}}+{\frac{ax}{2}} \right ) }-{\frac{4\,{a}^{3}\ln \left ( ax-1 \right ) }{3}\ln \left ({\frac{1}{2}}+{\frac{ax}{2}} \right ) }-{\frac{2\,{a}^{3} \left ( \ln \left ( ax+1 \right ) \right ) ^{2}}{3}}-{\frac{4\,{a}^{3}}{3}\ln \left ( -{\frac{ax}{2}}+{\frac{1}{2}} \right ) \ln \left ({\frac{1}{2}}+{\frac{ax}{2}} \right ) }+{\frac{4\,{a}^{3}\ln \left ( ax+1 \right ) }{3}\ln \left ( -{\frac{ax}{2}}+{\frac{1}{2}} \right ) } \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Maxima [A] time = 0.989153, size = 274, normalized size = 1.64 \begin{align*} -\frac{1}{6} \,{\left (16 \,{\left (\log \left (a x - 1\right ) \log \left (\frac{1}{2} \, a x + \frac{1}{2}\right ) +{\rm Li}_2\left (-\frac{1}{2} \, a x + \frac{1}{2}\right )\right )} a - 10 \,{\left (\log \left (a x + 1\right ) \log \left (x\right ) +{\rm Li}_2\left (-a x\right )\right )} a + 10 \,{\left (\log \left (-a x + 1\right ) \log \left (x\right ) +{\rm Li}_2\left (a x\right )\right )} a - a \log \left (a x + 1\right ) + a \log \left (a x - 1\right ) + \frac{2 \,{\left (2 \, a x \log \left (a x + 1\right )^{2} - 4 \, a x \log \left (a x + 1\right ) \log \left (a x - 1\right ) - 2 \, a x \log \left (a x - 1\right )^{2} + 1\right )}}{x}\right )} a^{2} + \frac{1}{3} \,{\left (8 \, a^{2} \log \left (a x + 1\right ) + 8 \, a^{2} \log \left (a x - 1\right ) - 10 \, a^{2} \log \left (x\right ) - \frac{1}{x^{2}}\right )} a \operatorname{artanh}\left (a x\right ) + \frac{1}{3} \,{\left (3 \, a^{4} x + \frac{6 \, a^{2} x^{2} - 1}{x^{3}}\right )} \operatorname{artanh}\left (a x\right )^{2} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Fricas [F] time = 0., size = 0, normalized size = 0. \begin{align*}{\rm integral}\left (\frac{{\left (a^{4} x^{4} - 2 \, a^{2} x^{2} + 1\right )} \operatorname{artanh}\left (a x\right )^{2}}{x^{4}}, x\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Sympy [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{\left (a x - 1\right )^{2} \left (a x + 1\right )^{2} \operatorname{atanh}^{2}{\left (a x \right )}}{x^{4}}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Giac [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{{\left (a^{2} x^{2} - 1\right )}^{2} \operatorname{artanh}\left (a x\right )^{2}}{x^{4}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]