Optimal. Leaf size=68 \[ -\frac {a}{6 x^2}-\frac {\tanh ^{-1}(a x)}{3 x^3}+\frac {2 a^2 \tanh ^{-1}(a x)}{x}+a^4 x \tanh ^{-1}(a x)-\frac {5}{3} a^3 \log (x)+\frac {4}{3} a^3 \log \left (1-a^2 x^2\right ) \]
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Rubi [A]
time = 0.08, antiderivative size = 68, normalized size of antiderivative = 1.00, number of steps
used = 13, number of rules used = 9, integrand size = 20, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.450, Rules used = {6159, 6021,
266, 6037, 272, 46, 36, 29, 31} \begin {gather*} a^4 x \tanh ^{-1}(a x)-\frac {5}{3} a^3 \log (x)+\frac {2 a^2 \tanh ^{-1}(a x)}{x}+\frac {4}{3} a^3 \log \left (1-a^2 x^2\right )-\frac {\tanh ^{-1}(a x)}{3 x^3}-\frac {a}{6 x^2} \end {gather*}
Antiderivative was successfully verified.
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Rule 29
Rule 31
Rule 36
Rule 46
Rule 266
Rule 272
Rule 6021
Rule 6037
Rule 6159
Rubi steps
\begin {align*} \int \frac {\left (1-a^2 x^2\right )^2 \tanh ^{-1}(a x)}{x^4} \, dx &=\int \left (a^4 \tanh ^{-1}(a x)+\frac {\tanh ^{-1}(a x)}{x^4}-\frac {2 a^2 \tanh ^{-1}(a x)}{x^2}\right ) \, dx\\ &=-\left (\left (2 a^2\right ) \int \frac {\tanh ^{-1}(a x)}{x^2} \, dx\right )+a^4 \int \tanh ^{-1}(a x) \, dx+\int \frac {\tanh ^{-1}(a x)}{x^4} \, dx\\ &=-\frac {\tanh ^{-1}(a x)}{3 x^3}+\frac {2 a^2 \tanh ^{-1}(a x)}{x}+a^4 x \tanh ^{-1}(a x)+\frac {1}{3} a \int \frac {1}{x^3 \left (1-a^2 x^2\right )} \, dx-\left (2 a^3\right ) \int \frac {1}{x \left (1-a^2 x^2\right )} \, dx-a^5 \int \frac {x}{1-a^2 x^2} \, dx\\ &=-\frac {\tanh ^{-1}(a x)}{3 x^3}+\frac {2 a^2 \tanh ^{-1}(a x)}{x}+a^4 x \tanh ^{-1}(a x)+\frac {1}{2} a^3 \log \left (1-a^2 x^2\right )+\frac {1}{6} a \text {Subst}\left (\int \frac {1}{x^2 \left (1-a^2 x\right )} \, dx,x,x^2\right )-a^3 \text {Subst}\left (\int \frac {1}{x \left (1-a^2 x\right )} \, dx,x,x^2\right )\\ &=-\frac {\tanh ^{-1}(a x)}{3 x^3}+\frac {2 a^2 \tanh ^{-1}(a x)}{x}+a^4 x \tanh ^{-1}(a x)+\frac {1}{2} a^3 \log \left (1-a^2 x^2\right )+\frac {1}{6} a \text {Subst}\left (\int \left (\frac {1}{x^2}+\frac {a^2}{x}-\frac {a^4}{-1+a^2 x}\right ) \, dx,x,x^2\right )-a^3 \text {Subst}\left (\int \frac {1}{x} \, dx,x,x^2\right )-a^5 \text {Subst}\left (\int \frac {1}{1-a^2 x} \, dx,x,x^2\right )\\ &=-\frac {a}{6 x^2}-\frac {\tanh ^{-1}(a x)}{3 x^3}+\frac {2 a^2 \tanh ^{-1}(a x)}{x}+a^4 x \tanh ^{-1}(a x)-\frac {5}{3} a^3 \log (x)+\frac {4}{3} a^3 \log \left (1-a^2 x^2\right )\\ \end {align*}
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Mathematica [A]
time = 0.02, size = 68, normalized size = 1.00 \begin {gather*} -\frac {a}{6 x^2}-\frac {\tanh ^{-1}(a x)}{3 x^3}+\frac {2 a^2 \tanh ^{-1}(a x)}{x}+a^4 x \tanh ^{-1}(a x)-\frac {5}{3} a^3 \log (x)+\frac {4}{3} a^3 \log \left (1-a^2 x^2\right ) \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.28, size = 67, normalized size = 0.99
method | result | size |
derivativedivides | \(a^{3} \left (a x \arctanh \left (a x \right )-\frac {\arctanh \left (a x \right )}{3 a^{3} x^{3}}+\frac {2 \arctanh \left (a x \right )}{a x}+\frac {4 \ln \left (a x -1\right )}{3}+\frac {4 \ln \left (a x +1\right )}{3}-\frac {1}{6 a^{2} x^{2}}-\frac {5 \ln \left (a x \right )}{3}\right )\) | \(67\) |
default | \(a^{3} \left (a x \arctanh \left (a x \right )-\frac {\arctanh \left (a x \right )}{3 a^{3} x^{3}}+\frac {2 \arctanh \left (a x \right )}{a x}+\frac {4 \ln \left (a x -1\right )}{3}+\frac {4 \ln \left (a x +1\right )}{3}-\frac {1}{6 a^{2} x^{2}}-\frac {5 \ln \left (a x \right )}{3}\right )\) | \(67\) |
risch | \(\frac {\left (3 a^{4} x^{4}+6 a^{2} x^{2}-1\right ) \ln \left (a x +1\right )}{6 x^{3}}-\frac {3 x^{4} \ln \left (-a x +1\right ) a^{4}+10 \ln \left (x \right ) a^{3} x^{3}-8 \ln \left (-a^{2} x^{2}+1\right ) a^{3} x^{3}+6 x^{2} \ln \left (-a x +1\right ) a^{2}+a x -\ln \left (-a x +1\right )}{6 x^{3}}\) | \(108\) |
meijerg | \(-\frac {a^{3} \left (-\frac {2 \left (10 a^{2} x^{2}+30\right )}{45 a^{2} x^{2}}-\frac {2 \left (\ln \left (1-\sqrt {a^{2} x^{2}}\right )-\ln \left (1+\sqrt {a^{2} x^{2}}\right )\right )}{3 a^{2} x^{2} \sqrt {a^{2} x^{2}}}+\frac {2 \ln \left (-a^{2} x^{2}+1\right )}{3}+\frac {4}{9}-\frac {4 \ln \left (x \right )}{3}-\frac {4 \ln \left (i a \right )}{3}+\frac {2}{a^{2} x^{2}}\right )}{4}-\frac {a^{3} \left (\frac {2 a^{2} x^{2} \left (\ln \left (1-\sqrt {a^{2} x^{2}}\right )-\ln \left (1+\sqrt {a^{2} x^{2}}\right )\right )}{\sqrt {a^{2} x^{2}}}-2 \ln \left (-a^{2} x^{2}+1\right )\right )}{4}-\frac {a^{3} \left (\frac {2 \ln \left (1-\sqrt {a^{2} x^{2}}\right )-2 \ln \left (1+\sqrt {a^{2} x^{2}}\right )}{\sqrt {a^{2} x^{2}}}-2 \ln \left (-a^{2} x^{2}+1\right )+4 \ln \left (x \right )+4 \ln \left (i a \right )\right )}{2}\) | \(240\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.27, size = 66, normalized size = 0.97 \begin {gather*} \frac {1}{6} \, {\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 + \frac {1}{3} \, {\left (3 \, a^{4} x + \frac {6 \, a^{2} x^{2} - 1}{x^{3}}\right )} \operatorname {artanh}\left (a x\right ) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.36, size = 72, normalized size = 1.06 \begin {gather*} \frac {8 \, a^{3} x^{3} \log \left (a^{2} x^{2} - 1\right ) - 10 \, a^{3} x^{3} \log \left (x\right ) - a x + {\left (3 \, a^{4} x^{4} + 6 \, a^{2} x^{2} - 1\right )} \log \left (-\frac {a x + 1}{a x - 1}\right )}{6 \, x^{3}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A]
time = 0.47, size = 75, normalized size = 1.10 \begin {gather*} \begin {cases} a^{4} x \operatorname {atanh}{\left (a x \right )} - \frac {5 a^{3} \log {\left (x \right )}}{3} + \frac {8 a^{3} \log {\left (x - \frac {1}{a} \right )}}{3} + \frac {8 a^{3} \operatorname {atanh}{\left (a x \right )}}{3} + \frac {2 a^{2} \operatorname {atanh}{\left (a x \right )}}{x} - \frac {a}{6 x^{2}} - \frac {\operatorname {atanh}{\left (a x \right )}}{3 x^{3}} & \text {for}\: a \neq 0 \\0 & \text {otherwise} \end {cases} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [B] Leaf count of result is larger than twice the leaf count of optimal. 274 vs.
\(2 (60) = 120\).
time = 0.39, size = 274, normalized size = 4.03 \begin {gather*} \frac {1}{3} \, {\left (8 \, a^{2} \log \left (\frac {{\left | -a x - 1 \right |}}{{\left | a x - 1 \right |}}\right ) - 3 \, a^{2} \log \left ({\left | -\frac {a x + 1}{a x - 1} + 1 \right |}\right ) - 5 \, a^{2} \log \left ({\left | -\frac {a x + 1}{a x - 1} - 1 \right |}\right ) + {\left (\frac {3 \, a^{2}}{\frac {a x + 1}{a x - 1} - 1} - \frac {\frac {3 \, {\left (a x + 1\right )}^{2} a^{2}}{{\left (a x - 1\right )}^{2}} + \frac {12 \, {\left (a x + 1\right )} a^{2}}{a x - 1} + 5 \, a^{2}}{{\left (\frac {a x + 1}{a x - 1} + 1\right )}^{3}}\right )} \log \left (-\frac {\frac {a {\left (\frac {a x + 1}{a x - 1} + 1\right )}}{\frac {{\left (a x + 1\right )} a}{a x - 1} - a} + 1}{\frac {a {\left (\frac {a x + 1}{a x - 1} + 1\right )}}{\frac {{\left (a x + 1\right )} a}{a x - 1} - a} - 1}\right ) + \frac {2 \, {\left (a x + 1\right )} a^{2}}{{\left (a x - 1\right )} {\left (\frac {a x + 1}{a x - 1} + 1\right )}^{2}}\right )} a \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 0.88, size = 59, normalized size = 0.87 \begin {gather*} \frac {4\,a^3\,\ln \left (a^2\,x^2-1\right )}{3}-\frac {a}{6\,x^2}-\frac {\mathrm {atanh}\left (a\,x\right )}{3\,x^3}-\frac {5\,a^3\,\ln \left (x\right )}{3}+a^4\,x\,\mathrm {atanh}\left (a\,x\right )+\frac {2\,a^2\,\mathrm {atanh}\left (a\,x\right )}{x} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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