Optimal. Leaf size=63 \[ -\frac{\text{Unintegrable}\left (\frac{1}{\sqrt{1-a^2 x^2} \tanh ^{-1}(a x)^2},x\right )}{a^2}+\frac{\text{Shi}\left (\tanh ^{-1}(a x)\right )}{a^3}-\frac{1}{a^3 \sqrt{1-a^2 x^2} \tanh ^{-1}(a x)} \]
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Rubi [A] time = 0.266309, antiderivative size = 0, normalized size of antiderivative = 0., number of steps used = 0, number of rules used = 0, integrand size = 0, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0., Rules used = {} \[ \int \frac{x^2}{\left (1-a^2 x^2\right )^{3/2} \tanh ^{-1}(a x)^2} \, dx \]
Verification is Not applicable to the result.
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Rubi steps
\begin{align*} \int \frac{x^2}{\left (1-a^2 x^2\right )^{3/2} \tanh ^{-1}(a x)^2} \, dx &=\frac{\int \frac{1}{\left (1-a^2 x^2\right )^{3/2} \tanh ^{-1}(a x)^2} \, dx}{a^2}-\frac{\int \frac{1}{\sqrt{1-a^2 x^2} \tanh ^{-1}(a x)^2} \, dx}{a^2}\\ &=-\frac{1}{a^3 \sqrt{1-a^2 x^2} \tanh ^{-1}(a x)}-\frac{\int \frac{1}{\sqrt{1-a^2 x^2} \tanh ^{-1}(a x)^2} \, dx}{a^2}+\frac{\int \frac{x}{\left (1-a^2 x^2\right )^{3/2} \tanh ^{-1}(a x)} \, dx}{a}\\ &=-\frac{1}{a^3 \sqrt{1-a^2 x^2} \tanh ^{-1}(a x)}+\frac{\operatorname{Subst}\left (\int \frac{\sinh (x)}{x} \, dx,x,\tanh ^{-1}(a x)\right )}{a^3}-\frac{\int \frac{1}{\sqrt{1-a^2 x^2} \tanh ^{-1}(a x)^2} \, dx}{a^2}\\ &=-\frac{1}{a^3 \sqrt{1-a^2 x^2} \tanh ^{-1}(a x)}+\frac{\text{Shi}\left (\tanh ^{-1}(a x)\right )}{a^3}-\frac{\int \frac{1}{\sqrt{1-a^2 x^2} \tanh ^{-1}(a x)^2} \, dx}{a^2}\\ \end{align*}
Mathematica [A] time = 3.0621, size = 0, normalized size = 0. \[ \int \frac{x^2}{\left (1-a^2 x^2\right )^{3/2} \tanh ^{-1}(a x)^2} \, dx \]
Verification is Not applicable to the result.
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Maple [A] time = 0.289, size = 0, normalized size = 0. \begin{align*} \int{\frac{{x}^{2}}{ \left ({\it Artanh} \left ( ax \right ) \right ) ^{2}} \left ( -{a}^{2}{x}^{2}+1 \right ) ^{-{\frac{3}{2}}}}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{x^{2}}{{\left (-a^{2} x^{2} + 1\right )}^{\frac{3}{2}} \operatorname{artanh}\left (a x\right )^{2}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 0., size = 0, normalized size = 0. \begin{align*}{\rm integral}\left (\frac{\sqrt{-a^{2} x^{2} + 1} x^{2}}{{\left (a^{4} x^{4} - 2 \, a^{2} x^{2} + 1\right )} \operatorname{artanh}\left (a x\right )^{2}}, x\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{x^{2}}{\left (- \left (a x - 1\right ) \left (a x + 1\right )\right )^{\frac{3}{2}} \operatorname{atanh}^{2}{\left (a x \right )}}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{x^{2}}{{\left (-a^{2} x^{2} + 1\right )}^{\frac{3}{2}} \operatorname{artanh}\left (a x\right )^{2}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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