Optimal. Leaf size=64 \[ \frac {\text {Chi}\left (2 \tanh ^{-1}(a x)\right )}{a^3}-\frac {x^2}{2 a \left (1-a^2 x^2\right ) \tanh ^{-1}(a x)^2}-\frac {x}{a^2 \left (1-a^2 x^2\right ) \tanh ^{-1}(a x)} \]
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Rubi [A] time = 0.27, antiderivative size = 64, normalized size of antiderivative = 1.00, number of steps used = 10, number of rules used = 6, integrand size = 22, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.273, Rules used = {6006, 6032, 6034, 3312, 3301, 5968} \[ \frac {\text {Chi}\left (2 \tanh ^{-1}(a x)\right )}{a^3}-\frac {x^2}{2 a \left (1-a^2 x^2\right ) \tanh ^{-1}(a x)^2}-\frac {x}{a^2 \left (1-a^2 x^2\right ) \tanh ^{-1}(a x)} \]
Antiderivative was successfully verified.
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Rule 3301
Rule 3312
Rule 5968
Rule 6006
Rule 6032
Rule 6034
Rubi steps
\begin {align*} \int \frac {x^2}{\left (1-a^2 x^2\right )^2 \tanh ^{-1}(a x)^3} \, dx &=-\frac {x^2}{2 a \left (1-a^2 x^2\right ) \tanh ^{-1}(a x)^2}+\frac {\int \frac {x}{\left (1-a^2 x^2\right )^2 \tanh ^{-1}(a x)^2} \, dx}{a}\\ &=-\frac {x^2}{2 a \left (1-a^2 x^2\right ) \tanh ^{-1}(a x)^2}-\frac {x}{a^2 \left (1-a^2 x^2\right ) \tanh ^{-1}(a x)}+\frac {\int \frac {1}{\left (1-a^2 x^2\right )^2 \tanh ^{-1}(a x)} \, dx}{a^2}+\int \frac {x^2}{\left (1-a^2 x^2\right )^2 \tanh ^{-1}(a x)} \, dx\\ &=-\frac {x^2}{2 a \left (1-a^2 x^2\right ) \tanh ^{-1}(a x)^2}-\frac {x}{a^2 \left (1-a^2 x^2\right ) \tanh ^{-1}(a x)}+\frac {\operatorname {Subst}\left (\int \frac {\cosh ^2(x)}{x} \, dx,x,\tanh ^{-1}(a x)\right )}{a^3}+\frac {\operatorname {Subst}\left (\int \frac {\sinh ^2(x)}{x} \, dx,x,\tanh ^{-1}(a x)\right )}{a^3}\\ &=-\frac {x^2}{2 a \left (1-a^2 x^2\right ) \tanh ^{-1}(a x)^2}-\frac {x}{a^2 \left (1-a^2 x^2\right ) \tanh ^{-1}(a x)}-\frac {\operatorname {Subst}\left (\int \left (\frac {1}{2 x}-\frac {\cosh (2 x)}{2 x}\right ) \, dx,x,\tanh ^{-1}(a x)\right )}{a^3}+\frac {\operatorname {Subst}\left (\int \left (\frac {1}{2 x}+\frac {\cosh (2 x)}{2 x}\right ) \, dx,x,\tanh ^{-1}(a x)\right )}{a^3}\\ &=-\frac {x^2}{2 a \left (1-a^2 x^2\right ) \tanh ^{-1}(a x)^2}-\frac {x}{a^2 \left (1-a^2 x^2\right ) \tanh ^{-1}(a x)}+2 \frac {\operatorname {Subst}\left (\int \frac {\cosh (2 x)}{x} \, dx,x,\tanh ^{-1}(a x)\right )}{2 a^3}\\ &=-\frac {x^2}{2 a \left (1-a^2 x^2\right ) \tanh ^{-1}(a x)^2}-\frac {x}{a^2 \left (1-a^2 x^2\right ) \tanh ^{-1}(a x)}+\frac {\text {Chi}\left (2 \tanh ^{-1}(a x)\right )}{a^3}\\ \end {align*}
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Mathematica [A] time = 0.12, size = 47, normalized size = 0.73 \[ \frac {\frac {a x \left (a x+2 \tanh ^{-1}(a x)\right )}{\left (a^2 x^2-1\right ) \tanh ^{-1}(a x)^2}+2 \text {Chi}\left (2 \tanh ^{-1}(a x)\right )}{2 a^3} \]
Antiderivative was successfully verified.
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fricas [B] time = 0.45, size = 131, normalized size = 2.05 \[ \frac {4 \, a^{2} x^{2} + 4 \, a x \log \left (-\frac {a x + 1}{a x - 1}\right ) + {\left ({\left (a^{2} x^{2} - 1\right )} \operatorname {log\_integral}\left (-\frac {a x + 1}{a x - 1}\right ) + {\left (a^{2} x^{2} - 1\right )} \operatorname {log\_integral}\left (-\frac {a x - 1}{a x + 1}\right )\right )} \log \left (-\frac {a x + 1}{a x - 1}\right )^{2}}{2 \, {\left (a^{5} x^{2} - a^{3}\right )} \log \left (-\frac {a x + 1}{a x - 1}\right )^{2}} \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [F] time = 0.00, size = 0, normalized size = 0.00 \[ \int \frac {x^{2}}{{\left (a^{2} x^{2} - 1\right )}^{2} \operatorname {artanh}\left (a x\right )^{3}}\,{d x} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.20, size = 51, normalized size = 0.80 \[ \frac {\frac {1}{4 \arctanh \left (a x \right )^{2}}-\frac {\cosh \left (2 \arctanh \left (a x \right )\right )}{4 \arctanh \left (a x \right )^{2}}-\frac {\sinh \left (2 \arctanh \left (a x \right )\right )}{2 \arctanh \left (a x \right )}+\Chi \left (2 \arctanh \left (a x \right )\right )}{a^{3}} \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [F] time = 0.00, size = 0, normalized size = 0.00 \[ \frac {2 \, {\left (a x^{2} + x \log \left (a x + 1\right ) - x \log \left (-a x + 1\right )\right )}}{{\left (a^{4} x^{2} - a^{2}\right )} \log \left (a x + 1\right )^{2} - 2 \, {\left (a^{4} x^{2} - a^{2}\right )} \log \left (a x + 1\right ) \log \left (-a x + 1\right ) + {\left (a^{4} x^{2} - a^{2}\right )} \log \left (-a x + 1\right )^{2}} - \int -\frac {2 \, {\left (a^{2} x^{2} + 1\right )}}{{\left (a^{6} x^{4} - 2 \, a^{4} x^{2} + a^{2}\right )} \log \left (a x + 1\right ) - {\left (a^{6} x^{4} - 2 \, a^{4} x^{2} + a^{2}\right )} \log \left (-a x + 1\right )}\,{d x} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [F] time = 0.00, size = -1, normalized size = -0.02 \[ \int \frac {x^2}{{\mathrm {atanh}\left (a\,x\right )}^3\,{\left (a^2\,x^2-1\right )}^2} \,d x \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [F] time = 0.00, size = 0, normalized size = 0.00 \[ \int \frac {x^{2}}{\left (a x - 1\right )^{2} \left (a x + 1\right )^{2} \operatorname {atanh}^{3}{\left (a x \right )}}\, dx \]
Verification of antiderivative is not currently implemented for this CAS.
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